A study is conducted in which the attitudes of the staff of a rehabilitation center are assessed; then the staff is exposed to an attitude-change manipulation, and attitudes are assessed again. Another rehabilitation center of similar size is also chosen; attitudes there are measured, and then assessed again after manipulation. This quasi-experimental design is called a _____ design.

A) Solomon four-group
B) nonequivalent control group pretest-posttest
C) interrupted time series
D) control series

Nonequivalent Control Group Pretest-posttest Design

An experimental design where participants are not randomly assigned to groups, and both control and experimental groups are pre-tested and post-tested for comparison.

Rehabilitation Center

A specialized facility dedicated to the treatment, therapy, and recovery support of individuals recovering from illnesses, injuries, or addictions.

Attitude-change Manipulation

An experimental technique used to influence or alter participants' attitudes towards a specific object, concept, or person.