Mediation of experimenter effects

Russell A. Jones, Joel Cooper

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Examined the hypothesis that ss' projection of the feeling tone of their interaction with the e can influence the results obtained with a person-perception task and that the number of mutual glances between e and s is an important determinant of that feeling tone. A pilot study, with 45 male undergraduates, demonstrated that ss who had just experienced success prior to the person-perception task were more likely to perceive success in neutral photos than were ss who had just experienced failure. The main experiment with 80 male high school students, found a direct relation between the number of times es glanced at ss and both (a) ss' self-reports of happiness and success, and (b) ss' tendency to perceive success in neutral photos. (PsycINFO Database Record (c) 2006 APA, all rights reserved).

Original languageEnglish (US)
Pages (from-to)70-74
Number of pages5
JournalJournal of personality and social psychology
Issue number1
StatePublished - Oct 1 1971

All Science Journal Classification (ASJC) codes

  • Social Psychology
  • Sociology and Political Science


  • S
  • mutual glances between E &
  • person perception task results, projection of feeling tone of interaction with E &


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