"Asch Followed Sherif"

Solomon Asch's (1951, 1955) conformity studies are among the best-known in social psychology. Using a line-length judging task that a control condition of subjects participating alone showed to be quite easy, Asch demonstrated that naive subjects could be induced to answer incorrectly by implicit social pressure. Specifically, by having a unanimous panel of confederates (i.e., shills) give an incorrect answer in the naive subject's presence before the subject's turn to answer, substantial proportions of matching incorrect answers could be elicited from naive subjects.

An inspiration -- if not the inspiration -- for Asch's research was that of Muzafer Sherif (1935, 1936). Sherif had used an ambiguous stimulus -- a visual illusion known as the autokinetic effect -- for his initial demonstrations of conformity in a psychology lab. Asch wanted to see if conformity effects could be obtained even with unambiguous stimuli (i.e., the aforementioned line-judging task), and the rest is history...

The following song conveys the historical sequence.

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Asch Followed Sherif
Lyrics by Alan Reifman
(May be sung to the tune of “I Shot the Sheriff,” Bob Marley)

Asch followed Sherif, in the study of conformity,
Both lines of research, in the field, had great enormity,

Sherif’s light spots were hazy,
And the majority held sway,
Citing this ambiguity,
Asch said he’d go another way,
...said he’d go another way,

Asch followed Sherif, in the study of conformity,
Both lines of research, in the field, had great enormity,

Asch used the lengths of lines which,
With lone subjects, were easy to discern,
But shills still got subjects to accede,
As Asch was soon to learn,
...Asch was soon to learn,

Asch followed Sherif, in the study of conformity,
Both lines of research, in the field, had great enormity...

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Background/Explanation

Saul McLeod's "Simply Psychology" website provides a detailed summary of the evolution of conformity research, from Sherif's study to Asch's.

Further Reading

Asch, S.E. (1951) Effects of group pressure upon the modification and distortion of judgement. In H. Guetzkow (Ed.), Groups, leadership and men. Pittsburgh, PA: Carnegie Press.

Asch, S.E. (1955). Opinions and social pressure. Scientific American, 193, 31-35.

Sherif, M. (1935). A study of some social factors in perception. Archives of Psychology, 27,(No. 187, whole issue) .

Sherif, M. (1936). The psychology of social norms. New York: Harper Collins.