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8.4.1 Common Features
All informal surveys have five important features or
distinguishing characteristics, which are illustrated in Table
8.1 :
    - There is direct FSD worker-farmer interaction because the
        interviews are conducted by the FSD workers themselves,
        with FSD workers learning directly from farmers. Existing
        information and direct observation are also important
        sources of information in an informal survey. Special
        efforts are made to meet those (e.g., women, poorer
        people' more isolated people, etc.) who otherwise tend to
        be missed.
- Interviews basically are unstructured and semi-directed.
        As a result, learning is rapid and progressive with a
        flexible use of methods to explore relevant issues as
        they arise with Improvisation, iteration, and probing.
        Questionnaires are not used, although FSD workers often
        use topic guidelines to make sure all relevant topics, on
        a given subject, are covered. Written notes sometimes are
        taken during the interviews, but the emphasis is on
        dialogue and questioning to obtain information.
- The data collection process is dynamic and iterative,
        because FSD workers evaluate the data collected and
        reformulate data needs on a regular basis (i.e., often
        daily). More than one method or source of information
        often is used to cross check and confirm data and to
        improve approximations. Also, efforts are made not to
        find out more than is required and not to make, because
        of expense, inappropriately precise measurements.
- The interviews often are conducted by an
        interdisciplinary team with each discipline contributing
        to the identification of problems and identifying and
        evaluating potential and actual solutions. These take
        into account factors influencing both the technical and
        human environment within which farmers operate (see
        Section 4.2).
- Informal surveys don't permit statistical analysis,
        because they are undertaken without a formal sampling
        procedure, do not involve obtaining responses to a
        standard set of. questions, etc.
TABLE 8.1 : COMPARING GENERAL CHARACTERISTICS OF
FORMAL AND INFORMAL SURVEYS
    
        | CHARACTERISTIC | INFORMAL | FORMAL | 
    
        | Background information
        required | Minimal | Substantial | 
    
        | Time allocation by
        researchers: |  |  | 
    
        | Preparation | Less | More | 
    
        | Implementation | More | Less | 
    
        | Analysis/writing | Less | More | 
    
        | Total time | Less | More | 
    
        | Hypotheses: Required
        beforehand | Not essential | Essential | 
    
        | Created during | Yes | No | 
    
        | Likely discipline
        interaction | More likely | Less likely | 
    
        | Implementation: |  |  | 
    
        | Questionnaire used? | No | Yes | 
    
        | Interviewers | FSD worker(s) | Mainly enumerators | 
    
        | Potential for
        creativity/literation | Maximum | Minimal | 
    
        | Potential for
        learning/verification | Mainly learning | Mainly verification | 
    
        | Potential for representative
        sample | Le likely | More likely | 
    
        | Potential quality of
        information: |  |  | 
    
        | Attitudinal | Better | Poorer | 
    
        | Qualitative | Better | Poorer | 
    
        | Quantitative | Poorer | Better | 
    
        | Probability of high:
        Sampling errors | Higher | Lower | 
    
        | Measurement errors | No difference | No difference | 
    
        | Value of
        statistical techniques in analysis | Little | Great | 
In FSD, informal surveys have developed as a result of:
    - Increasing realization by scientists that a relationship
        with the farmer based on treating her/him as a person
        with whom one could interact constructively was much more
        fruitful than one based on treating her/him as a object
        from whom one collected data to be analyzed
        independently.
- The increasing need by scientists to become acquainted
        with, and learn from, farmers.
- The need to find a method for rapidly obtaining technical
        and socio-economic information to help researchers in
        developing relevant improved technologies,
- The need to identify a cost-effective survey procedure. 
There is no question that the popularity and use of informal
surveys will continue to grow in the future. However, at least
four critical factors will be important in determining whether
this approach will be successful or not.
    - Human Resources. Informal
        surveys will give reliable findings only if the
        interdisciplinary team of researchers/FSD workers is
        familiar with the techniques; possess interviewing,
        observational, and analytical skills; and can work well
        together in the field.
- Flexibility in Decision Making.
        Informal surveys can provide timely information for
        improved understanding throughout the research process.
        However, benefits from these inputs will be achieved only
        if the FSD programme can be structured in a flexible
        enough manner to permit, and react to, the input of new
        information as specific FSD activities proceed. FSD
        certainly should be able to respond in this manner, but
        on station research is likely to be less flexible,
- Intended Use of Information.
        Informal surveys are particularly appropriate whenever
        open-ended learning is needed or desired, but will not be
        appropriate when data are required over a long period of
        time or when more precise and statistically reliable data
        are needed from a large number of units. However,
        informal surveys can be used to better design and
        complement/supplement other data collection methods.
- Intended Audience. The results
        of informal surveys, because of their lack of statistical
        validity and heavy reliance on attitudinal/qualitative
        information, are inherently unlikely to hold much appeal
        to those used to relying on, and working with,
        quantitative data and statistical techniques (e.g.,
        station-based scientists, planners, etc.). However, one
        way of often reducing such scepticism is to elicit the
        support of such individuals before undertaking such
        surveys and, if possible, persuade them to participate
        directly in their implementation as one of the
        interdisciplinary team members, Under such circumstances,
        they not only have an opportunity to make a contribution
        in theta. own right but also have a vested interest in
        the results, which, consequently, are likely to be more
        acceptable.
8.4.2 Types: General
In recent years, there has been an methodological explosion in
terms of how to undertake informal surveys. Very simplistically,
these new survey methods can be classified into two mayor groups:
    - Rapid Rural Appraisal (RRA) Surveys,
        which sometimes are called a variety of other names
        including sondeos, rapid reconnaissance surveys, and/or
        exploratory surveys. These often are undertaken with
        individual respondents, although a number of respondents
        occasionally might be interviewed at the same time.
- Participatory Rural Appraisal (PRA)
        Techniques. such as mapping, seasonal
        diagramming, matrix ranking and scoring, etc. These
        usually are done with groups of respondents.
In considering the two types of informal surveys, a number of
points can be made' for example:
    - The philosophy, approaches, and methods of RRA began to
        develop into a coherent and identifiable form in the late
        1970's, whereas most of the PRA techniques developed
        later.
- RRA often is considered extractive in the sense that
        outside professionals go to rural areas, obtain
        information, and then take it away to process and
        analyze. PRA, on the other hand, is participatory in the
        sense that its role is more to facilitate the collection,
        presentation, and analysis by the farmers themselves.
- RRA and PRA have a number of features in common such as
        those indicated above (see Section 8,4.1 ). However PRA
        has a number of features that have not been prominent in
        RRA including:
    
        - Getting the farmers themselves to do the
            investigation, analysis, and presentation, with the
            outsiders simply playing a facilitating role.
- Outsiders emphasizing self-critical awareness (i.e.,
            examining their behaviour) so that they play a truly
            facilitative rather than interventionist role,
            including that of relaxing and not rushing the
            farmers.
- Outsiders using their own best judgement at all times
            rather than relying on a manual or a rigid set of
            rules, and learning to welcome any errors as an
            opportunity to do better.
- Greater sharing of information among farmers and
            between farmers and outsiders,
    - Although RRA and PRA differ in approach, the distinction
        is becoming increasingly blurred, because much of the
        methodology is shared. However, in this manual, RRA is
        distinguished from PRA in the sense that they are
        considered as semi- structured interviews. This often has
        been viewed as the 'basic foundation, of good RRA. It
        means having a mental or written checklist but is
        open-ended in approach, allowing following up on
        unanticipated issues and/or responses.
8.4.3 RRA: Uses and Implementation
Over the years, properly executed RRA surveys have proved to
be low-cost ways of obtaining information and opinions from
farmers; of tapping the indigenous knowledge and wisdom that
exists on agricultural matters; and of developing a rapid
understanding of farmers' circumstances, practices and problems,
A large body of literature is becoming available on the
techniques of RRA. A particularly useful overview is given in
Khon Kaen L 1987]. Three organizations that regularly produce
information and results from the application of RRA are the
International Institute for Environment and Development (IIED) in
the UK; the Forest, Trees and People (FTP) Network organized
jointly by the Community Forestry Unit in FAO and the
International Development Research Centre (lDRC), SUAS in Sweden;
and the Information Centre for Low External Input Agriculture
(ILEIA) in the Netherlands. CIMMYT was one of the earliest CGIAR
institutions responsible for demonstrating the value of informal
or RRA surveys in FSD activities, while the Institute of
Development Studies (IDS) at the University of Sussex, UK, also
played an important role in advocating RRA during the early
days..
BOX 8.1: RRA IS USEFUL IN SELECTING REPRESENTATIVE
RESEARCH AREAS
In Botswana, such surveys were extremely useful in initiating
activities of two of the FSD teams. There was concern about the
potentially high logistical costs of interviewing farmers spread
over large areas. Therefore, RRA-type surveys were undertaken in
the two areas to ascertain whether the needs of different types
of farmers in each area could be captured by confining the bulk
of the teams' activities to working with a cross-section of
farmers in three villages in each region. It was concluded that
the variation in the farming systems within the selected villages
-- which had different characteristics, such as size, settlement
patterns, accessibility to the urban area, etc. -was as great as
the variation throughout the region as a whole. Thus, research
efforts could be concentrated geographically.
RRA-type surveys can serve five main functions in FSD-type
work:
    - The Feasibility Survey. RRA
        surveys can be useful in planning a project in a region,
        particularly in cases where relatively little is known
        such as obtaining an understanding of the target area and
        in selecting the research area (see Sections 5.3 and 5.4)
        (Box 8.1).
- Reconnaissance Surveys to Prepare Formal
        Surveys. The objective of these surveys is
        to quickly obtain basic information for designing and
        executing formal surveys or more in-depth investigations
        that may lead to on-farm experimentation. Such surveys
        help in developing an understanding of the area and can
        help ensure that the formal questionnaire is designed in
        a manner understandable (e.g., in terms, standards of
        measurement used, etc.) and relevant to farmers'
        circumstances and sensitive to local issues, etc. Such
        formal surveys, as follow ups to informal surveys, are
        firmly entrenched in the methodologies of some
        institutions. See, for example the so-called formal
        verification surveys advocated by CIMMYT [Byerlee et al,
        1980]. However, questions are now being asked whether in
        an era of increasingly limited research resources, this
        is really necessary, because it often simply verifies
        what is already known .
- Informal Surveys for the Direct Planning of
        On-Farm Trials. The formal survey stage is
        skipped and on-farm experiments are undertaken on the
        basis of an informal survey, which identifies problems
        that need to be addressed. For example, FSD work in the
        ploughing/planting area may evolve out of the informal
        surveys supplemented later with data derived from studies
        and formal surveys.
- Informal Group Interviews on Selecting,
        Monitoring, and Evaluating On-Farm Trials.
        Conventionally, much of the literature emphasizes the use
        of RRA techniques in the planning stages of FSD work.
        However, such techniques also have been used in the
        monitoring and evaluation of on-farm trials, particularly
        those at the FMFl level. Research-oriented farmer groups
        provide a particularly good forum for such interaction
        (see Section 9.8.6).
- Assessing Impact and Adoption.
        The recent increased emphasis on looking at the impact of
        research resources in terms of success and problems of
        adoption provides another potential role for RRA type
        surveys. As yet, this has been done rarely, but it could
        provide a quick and cost efficient way of feeding back
        issues to station-based researchers and to planners. Such
        surveys also could provide valuable insights in the
        design of more formal surveys addressing adoption.
A number of decisions and actions must be undertaken in
implementing RRA type surveys. Important points to consider are:
    - The major objectives of the survey need to be determined.
        These should be finalized after taking into account the
        needs and inputs of the relevant authorities and
        interested parties (e.g., FSD, extension/development and
        station-based personnel).
- The size and composition of the survey team needs to be
        decided. Usually, the size of the team should be
        determined by the objectives or focus of the survey. The
        more complex the objectives and the more complex the
        technical and human environment (see Section 4.2), the
        more desirable a larger team would be. In general, both
        technical and social scientists and, whenever possible,
        both men and women, should be included in teams. It is
        also desirable to include women on the teams to ensure
        that gender issues are taken into account. Also in some
        societies, it may be imperative to have women on the team
        to interview women in the survey area, Inclusion of
        extension/development and station-based personnel
        sometimes can be useful both in terms of the potential
        contribution they can make and the professional benefits
        they can receive as a result of interaction between
        disciplines and with farmers,
- Background information relating to the objectives and
        area to be surveyed need to be assembled and digested,
        Such information can be obtained from: reviewing
        secondary data -- both published and unpublished --
        acquiring maps, and interviewing key informants, These
        are knowledgeable personnel such as local government
        officials, leaders, extension, and development staff who
        have good background information relating to the
        objectives and the area to be studied, The amount of time
        required for obtaining and digesting background
        information will be minimal, if the FSD team is already
        working in the area,
- If it is the team's first time to work in the area, then
        approval to undertake the survey must be obtained from
        the appropriate authorities, This often means obtaining
        the support of regional and district agricultural
        officials and leaders in the villages.
- It is desirable to produce interviewing guidelines, These
        can be divided into two groups: content and process.
    
        - Content. These are topical
            lists to help interviewers address topics and aspects
            of a topic that they might otherwise omit, The list
            should arise out of a consensus among team members
            and should consider the objectives, background
            information, and prior knowledge of the area, Making
            the list provides an ideal opportunity for promoting
            team building, because it allows each team member to
            contribute to the list, emphasizing topics relevant
            to his/her own interests/discipline, As a result,
            survey priorities are established before going to the
            field, and the team begins to operate as a single
            unit. If possible, the topical outline should be
            tested prior to going to the field. However, this
            list should not be considered binding. Sometimes,
            team members may not want to pursue all the topics on
            the list in order to obtain more detailed information
            on a particular aspect.
- Process. In addition to
            deciding on the topics to be addressed in the survey,
            it is also important to agree on the appropriate
            interviewing procedures before starting the survey.
            Topics that might be useful to agree on before going
            to the field include: how to approach the farmer in
            terms of introduction; interaction, encouraging
            single or group interviews, length of interview,
            etc.; how to handle translation and sensitive topics;
            and how to avoid asking biased questions.
    - Interviewing procedures, of course, will be somewhat
        location-specific. Some points that are important to take
        into account, in addition to those mentioned earlier (see
        Section 8.2) include:
    
        - If the team is large, it is a good idea to break it
            up into groups of two - consisting ideally of a
            technical and social scientist -- to conduct
            interviews with a range of farmers, These farmers
            usually are selected in an informal manner; for
            example, every fifth farmer who is met or a certain
            number of farmers who have particular
            characteristics, such as being female and head of a
            household or who hire draught animals,
- Rotating team members on a daily basis gives each
            person a chance to work with and learn from other
            team members, thereby facilitating the exchange of
            ideas and helping to establish better communication
            among team members. It is also a good idea for the
            team to get together as a whole, on a frequent basis
            (e.g., daily), to review tentative hypotheses and
            compare and discuss observations and conclusions that
            have arisen. Also, at this point, some notes should
            be made, if not done earlier, to avoid points being
            forgotten at a later date. Such discussions can help
            stimulate team members' thinking and result in a
            modification of the topical outline for further
            interviews.
- At the end of the survey, which usually will not last
            more than a week, a written report should be prepared
            by team members reflecting a consensus on the
            hypotheses, findings -- which usually will include
            information on farmers' attitudes, constraints, and
            indigenous knowledge -- and recommendations for
            future action.
A great deal of FSD work has involved using informal survey
methods (e.g., see Box 8.2), which include one or more of the
elements discussed above. Obviously, once familiarity with the
area and individual farmers has been established, many short cuts
can be made in the implementation procedure, although it is
always important to bear in mind some basic principles (e.g., use
terms farmers can relate to, develop a collegiate or partnership
type relationship with farmers, etc.). RRA type survey techniques
have been used in many situations, for example:
    - Consultations with individual farmers on their farms
        concerning the practices they are using, the trials in
        which they are participating, etc.
- Farmer field days in which farmers played prominent
        roles.
- Farmer groups (i.e., both research- and
        extension-oriented) where farmers out-number the
        outsiders (i.e., researchers and extension staff), and,
        as a result, often express their views quite vigorously.
These forums provide important opportunities for learning from
the farmer in order to help in planning, implementing,
monitoring, and evaluating formal surveys, studies, and trials.
Because a good deal of this information is not documented
formally, the significance of this informal interaction in
shaping thoughts and actions tends to be forgotten. indeed, it is
probably true to say that many strategies developed in on-farm
trials over the years have been stimulated in such discussions
(see Box 8.3).
BOX 8.2: UNDERSTANDING THE ROLE AND LIMITATIONS OF RRA
SURVEYS
RRA surveys, in many different versions, have been used in FSD
as quick and cost-effective means of obtaining a broad overview
of technical and human constraints and potentials within a
farming system, McCracken and Conway [1988] list five features of
all good RRA surveys: iterative (i.e. between disciplinary
perspectives); innovative (i.e., fit the situation); informal;
interactive; and involving appropriate members of the target
community.
In the medium altitude zone of Kirinyaga District of Kenya, an
exploratory RRA survey was carried out with the primary extension
agents of the areas in which an FSD team was doing research
[Franzel, 1992]. The purpose was to use these agents as
informants to obtain a comprehensive picture of the situation
even more rapidly than could be done by interacting with farming
members of the community. This RRA survey did provide the
comprehensive information and was rated quite cost-effective.
However, the FSD team members recognized that the chance that
bias (i.e., perspectives different from those of farmers) would
exist among agents and go unnoticed, and that the false results
might be worse than no survey information at all.
A team working in Marit village of Plateau State, Nigeria,
compared findings obtained through RRA surveys and those obtained
through an Intensive Residential Study (IRS) [Merit Team, 19931.
Most of the key issues discovered during the IRS were confirmed
by the RRA: problems with soil fertility, water quality, income
potential for the young in agriculture, rural electricity,
marauding livestock, and others. Priorities for the elaboration
of projects in the community -- these priorities naturally would
correspond to the problem areas -- also were well identified by
the RRA survey. At a general level, RRA proved effective at
identifying issues. However, the Marit Team found that RRA could
not be relied on to reach the same level of understanding as IRS
for more subtle relationships and values, For example, the RRA
identified problems that informants thought could be corrected by
outside inputs (e.g., fertilizer, seeds, etc.) but not those
problems that surfaced over time in IRS that would require
'inside, solutions (e.g., mismanagement of funds). In terms of
values, the RRA survey results reflected more 'promodernization,
thinking, whereas the IRS revealed certain traditional values
that the RRA did not. These included such value issues as
matrimonial happiness, respect, etc.
The RRA survey is an important tool in FSD work. It provides
the broad perspectives necessary to correctly orient FSD
activities. However, RRA surveys should not always substitute for
further in-depth appraisal.
8.4.4 PRA: Types and Uses
As indicated earlier (see Section 8.4.2), PRA techniques are
evolving rapidly. As a result, it is impossible to provide an
exhaustive description of the different methods, because it would
become dated very quickly. A large number of papers are being
published currently on new techniques and refinements to existing
methods and should be consulted by those interested. Particularly
useful sources of information are the same ones cited for RRA
earlier (Section 8.4.3), namely IIED, FTP Network, IDS, and
ILEIA. In addition, Clark University in the USA has produced a
number of informative publications in this area, while a number
of CGIAR institutions have done some innovative work using PRA
techniques. Those with particularly noteworthy work in this area
include ICLARM, ICRAF, and CIMMYT.
BOX 8.3: FARMER-INITIATED STRATEGIES CAN IMPROVE THE
PRODUCTIVITY OF RESEARCH
    - In one part of Southern Africa, it was observed that many
        farmers recognized high potential sites on their fields
        where soils were deeper, had a relatively high clay
        fraction, and tended to be at the bottom of slopes. These
        characteristics create conditions conducive to high water
        retention, important in that drought-prone environment,
        Consequently, some farmers used strategies to take
        advantage of these high potential sites. As a result, FSD
        researchers also accepted the potential payoff from
        targeting strategies towards these high potential sites
        by implementing trials on manure and phosphate
        application.
- A couple of FSD teams did a lot of trial work on double
        ploughing to increase infiltration of water in the soil
        profile thereby improving the length of time planting can
        be done under optimal soil moisture conditions (see
        Section 10.8). Because, at times, the traditional
        ploughing/planting system can be effective if soil
        moisture conditions are satisfactory, farmers in one
        village indicated that they could reduce the cost of the
        first ploughing in a double ploughing system by doing it
        when the soil moisture conditions were not suitable for
        planting, therefore, not sacrificing potential
        production. This observation encouraged the FSD team to
        rethink ideas on the double ploughing strategy as a
        substitute for the traditional system. It is now viewed
        as an option that farmers can pursue for increasing the
        potential number of days in which planting can be done on
        subsequent rains.
The objective here is to give, by way of illustration,
summaries of four techniques that appear to have particular
potential in FSD type activities.
Before doing so, four important points to note about the use
of PRA techniques are as follows:
    - All involve having a group of respondents who together,
        after discussion, come to a consensus on the subject
        being considered. Thus, care must be taken that the
        respondents selected for the exercise are knowledgeable
        about the subject being discussed, and where results are
        likely to differ by recommendation domain, gender, etc.,
        that those in a specific group are of the same 'type' or
        'class'.
- They can be used effectively where the level of literacy
        is low. Lack of reliance on the written word appears to
        positively influence memory or visual retention. Such
        information can be transmitted effectively to others in
        pictorial form through drawing outlines on the ground
        supplemented with different objects or symbols reflecting
        different things/events/orders of magnitude, etc.
- Because the respondents are the major 'actors' in the
        activity and primarily interact amongst themselves, they
        can become very enthusiastic in, and derive considerable
        enjoyment and satisfaction from, undertaking the
        exercise.
- For those who doubt the results of a particular exercise,
        it can be repeated with another. group of respondents who
        have similar attributes, and the results compared.
Four examples of PRA techniques and their potential uses, are
as follows:
    - Mapping. Examples are of farms,
        residences, and/or points of major interest (e.g., wells,
        cooperative, etc.) in a village, Names of individuals
        farming each plot of land can be identified, and
        characteristics of households living in each residence
        (e.g., gender of household head, size of household, type
        of traction used, whether traction is owned or borrowed,
        etc.) can be obtained, The potential value of such an
        exercise is obvious in providing a low-cost and quick way
        of assembling a sampling frame from which stratified
        random samples can be selected for formal surveys (see
        Section 8,5.3).
- Trend Analysis. This involves
        use of a historical perspective and provides a way of
        relating changes (e.g., crops and their varieties,
        customs, land use and practices, ecological, etc.) and
        their causes to specific major events, which, in turn,
        can be related to specific years. Such trends, together
        with information relating to their causes, can obviously
        be useful inputs into addressing ecological
        sustainability issues, designing solutions that will
        overcome undesirable trends, providing some idea on how
        desirable trends can be encouraged, etc.
- Seasonal Diagramming. Examples
        are many and can include: amount and distribution of
        rainfall; specific operations by crop: level and
        distribution of labour (e.g., overall, by gender, etc.)
        by crop and livestock enterprise, total agriculture,
        off-farm, domestic household related; level and
        composition of food consumption through the year; level
        and composition of animal fodder through the year, etc.
        In these examples, levels are expressed in relative terms
        through comparing one part of the year with another
        (e.g., the longer the vertical line in relation to
        another, the greater is the level or amount compared with
        the other). When households are very close to the
        survival level, the they are likely to be more vulnerable
        to seasonal fluctuations, such as in food supplies, and
        less likely to be able to supplement their labour
        supplies at times of peak labour demand. Therefore,
        seasonal diagramming potentially can be very important in
        highlighting problems that need to be addressed by FSD
        teams and in helping to evaluate the value or relevance
        of potential solutions.
- Matrix Scoring and Ranking.
        Once again, there are many examples where this method can
        be applied. Possibilities are farmer assessment of:
        different varieties of crops, livestock, fodder crops,
        trees; treatments in an RM-RI trial; types of soil;
        methods of soil and water conservation, etc. The idea is
        to encourage and enable farmers to debate, decide, and
        weight the characteristics of the different alternatives
        and perhaps also indicate what they ideally would like to
        have. The weighting is constrained? forcing them to make
        judgements and trade-off decisions. The procedure is as
        follows [Chambers, 1992A]: 
    
        - Decide what you want ranked or scored (e.g.,
            varieties of sorghum, different treatments in a
            tillage trial, etc.). 
- Find one or more (preferably more than one)
            informants who are knowledgeable and willing to
            discuss -- preferably from the same recommendation
            domain.
- Decide with them which items (i.e., under the first
            point above) to rank or score -- for example, if they
            know nothing about a particular variety, it should
            not be included.
- For each in turn, ask them what is good about it,
            what is bad about it, what else (i.e., any other
            point that is relevant in ranking/scoring) -- their
            ideas, not yours!
- List the criteria and make negative ones positive,
            For example, 'attracts pests' becomes 'does not
            attract pests'. 
- Ask informants to rank or score each one (i.e., 1 =
            best, 2 = second best, etc. or score each out of 10,
            5 or 3). This could be done visually with a matrix
            drawn on the ground and asking farmers to select
            their preferences, for example, by distributing I ()
            identical objects (e.g.? bean seeds) between the
            various choices.
- At the end, ask the informants to rank them according
            to their preference if they could have only one. At
            that time they are aggregating the different criteria
            according to some weighting system. In fact it might
            also be useful to ask them to rank the importance of
            the different criteria. This could be done in a way
            Chambers calls a 'wish list, by distributing the
            objects according to the relative importance of the
            different criteria. This could provide very useful
            information for researchers, especially if the
            criteria are in potential conflict with each other.
    An illustration of one such test of the approach used in
    India is given in Box 8.4.
    Additional points that Chambers emphasizes are:
    
        - Don't use your criteria. If you do so, clearly
            separate them from theirs.
- Don't lecture -- listen and learn!
- Probe for farmer criteria.
- Follow up on points of interest.
- Try different sorts of people -- who often are in
            different recommendation domains.
- Experience has indicated ranking is all right up to
            about seven items, whereas scoring is all right for
            any number of evaluation criteria.
BOX 8.4: MATRIX SCORING CAN BE VERY USEFUL IN RANKING
EXERCISES
The following example of four women in India ranking the
characteristics of different trees was provided by Chambers
[1992A].
    
        | CRITERION | NEEM | PEEPUL | GUAYA | JAMUN | BER | JUHUL | 
    
        | Shade | 1 | 3= | 3= | 2 | 6 | 5 | 
    
        | Medicinal | 1 | - | - | - | - | - | 
    
        | Fodder | 1 | - | 2 | - | 3 | 4 | 
    
        | Durable | 1 | 5 | 4 | 3 | 2 | 6 | 
    
        | Furniture | 1 | 6 | 5 | 2 | 3 | 4 | 
    
        | Building | 1 | 4= | 4= | 2 | 3 | 4= | 
    
        | Fruit | 4 | 5= | 2 | 1 | 3 | 5= | 
    
        | Fuel | 1 | 2= | 2= | 2= | 2= | 2= | 
    
        | Safe to climb | - | - | - | 6 | 5 | - | 
    
        | Income | 2 | 6 | 3 | 1 | 4 | 5 | 
    
        | Agricultural tools | 2 | - | - | - | 1 | - | 
    
        | Not thorny | 2= | 2= | 2= | 1 | 5 | 6 | 
    
        | Charcoal | - | - | - | - | - | 1 | 
    
        | Choice if could have only one | 2 | 5 | 4 | 1 | 3 | 6 | 
a. In the table, the '=' means the different tree , were ram
ted equally in terms of the specific criterion.
This is one of the most exciting of the PRA techniques in the
sense that it has tremendous potential for obtaining farmer
assessment during design and testing activities (Box 8.5) and
possibly even relating to adoption in the dissemination stage.
However, as implied above, this has? not been exploited to date.
Also the techniques
PRA techniques are facilitating the move to practical
implementation of FSD with a 'natural resource systems focus'
(see Section 3.3). Staff at ICLARM have played a leadership role
in applying PRA techniques to addressing such
sustainability-related issues (e.g., see Lightfoot, Bottrall et
al [1991] and Lightfoot, Noble et al [1991]).
In a sense, these PRA methods provide a way of quantifying
qualitative type data and, therefore, potentially could be more
appealing to technical scientists not associated with FSD teams,
This is particularly likely to be the case once they have
observed these methods in operation. These methods as well as
adding an extra dimension to RRA-type surveys during
descriptive/diagnostic work (e.g., see Box 8.6), could, as
mentioned above, be important during the other stages of
FSD work in evaluating technologies. For example, a possible
application of the matrix scoring and ranking method would be in
farmer assessment of technologies tested in farmer groups. This
could take the place of an end-of-season formal survey (see
Section 9.8.6).
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