In the final stage of the decision-making process, congruence of
likes and dislikes with the sender should not affect the recipient's
assessment of the offer's costs or benefits, andwe therefore should not
find any evidence of an effect of perceptual affinity on the final
decision. This assertion is in line with the finding of Reingen et al.
(1984) that, while the interpersonal similarity hypothesis cannot be
entirely discounted, it appears to have very little explanatory power