indicated their intent to use it, now that they must go to
town to buy new seed or a new product, or must spend more
time working in the field in order to use it, they may
decide against it. Or, they may decide to use the
alternative but to modify it; for example, they may use
only half as much fertilizer as recommended and tested the
previous year.
 Through another directed survey the year after the
FMT, researchers can obtain the information necessary to
make an assessment of farmers' active evaluation of
acceptability. Farmers are asked if they are using the
alternative and, if so, on what proportion of the area of
that particular crop for which it was recommended. An
index of acceptability can be calculated from this
information:

 Ia = (C x A) / 100

where: Ia = Index of acceptability

 C = The percentage of the farmers interviewed
 who used the practice on at least part of
 the crop the year following the FMT in
 which they participated

 A = From among those farmers who used the
 practice the next year, the percentage of
 the area they have planted to that crop on
 which they are using the practice

 As an example, of 60 farmers who collaborated in an
FMT the year before, 40 were interviewed for purposes of
calculating an index of acceptability. Of the 40, there
were 20 (C = 50) who used the alternative on 70% of their
crop (A = 70). Thus,

 Ia = (50 x 70) / 100
 = 35

 Experience has suggested that if Ia exceeds 25 and C
is equal to or greater than 50, there is a good
possibility that adoption of the technology in the
recommendation domain will follow. Note that this is an
evaluation of acceptability of technology to the farmers.