where Y is the usage level of VIC; a the constant term; bi’s the
regression coefficients; xi the socioeconomic factors; U the random
disturbance term; (li 0, r2i
).
The explanatory variables (Xi) used in this analysis include:
X1 – Age
X2 – Gender
X3 – Socioeconomic Status
X4 – Land holding
X5 – Herd size
X6 – Income
X7 – Mass media exposure
X8 – Extension agency contact
X9 – Knowledge level
The regression functions were fitted separately for the VIC
usage level by the beneficiaries of the three organizations and
the pooled data for the overall beneficiaries in the study area.