Jecker, J. and Landy, D. (1969). Liking a person as a function of doing him a favour. Human Relations, 22(4), 371–378. doi:10.1177/001872676902200407.
Not read. The summary is drawn from what the work is standardly cited for; no abstract was reached. A reading should check it first.
Why this is here
The exchange cited it as the experimental evidence for the Franklin effect: winners asked personally to return the money liked the experimenter more. That matches the standard account, so no disagreement is flagged, but the account is secondary. The design matters for CLAIM-275: the favour is an act the participant is drawn into before any revised view of the experimenter, and the liking comes after. Whether a single 1969 study with small cells carries that weight is for a reading; secondary accounts note it is rarely replicated directly.