Jeffrey Jackson

Jeffrey M. Jackson is a psychologist listed at Fordham University on the 1985 paper The role of evaluation in eliminating social loafing, which he wrote with Stephen G. Harkins of Northeastern University.
Who they are
Jeffrey M. Jackson appears as second author, with a Fordham University affiliation, on a 1985 paper in Personality and Social Psychology Bulletin. The paper belongs to the research on social loafing, the tendency for individual effort to fall when work is pooled into a group result.
Key papers
The role of evaluation in eliminating social loafing (1985), with Stephen G. Harkins, Personality and Social Psychology Bulletin, 11(4), 457-465. The paper reports a brainstorming experiment in four-person groups in which each participant's output was either individually identifiable or pooled, crossed with whether participants believed their output could be compared with co-workers'.
Key ideas
The paper concluded that eliminating social loafing requires both identifiable output and the possibility of evaluation by comparison with co-workers. Identifiable outputs produced more ideas, but only when participants believed their outputs could be evaluated against others. The idea is described on this site under identifiability.
Sources
- Harkins, S. G., & Jackson, J. M. (1985), The role of evaluation in eliminating social loafing, Personality and Social Psychology Bulletin, 11(4), 457-465. https://doi.org/10.1177/0146167285114011