A study is conducted in which the attitudes of the staff of one mental hospital are assessed;then the staff is exposed to an attitude-change manipulation,and attitudes are assessed again.A control hospital of similar size is also chosen;attitudes there are measured and then at a later time,assessed again.This quasi-experimental design is called a(n)_____ design.

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The design mentioned in the scenario involves a non-equivalent control group (the control hospital) and pretest-posttest assessments. This is a quasi-experimental design because random assignment to groups did not occur. It is specifically a non-equivalent control group pretest-posttest design because the control group is not equivalent to the experimental group and both groups were measured at different points in time.

A Study Is Conducted in Which the Attitudes of the Staff