Nonequivalent group design refers to a research study in which the different groups of participants are formed under circumstances that do not permit the researcher to control the assignment of individuals to groups and the groups of participants are, therefore, considered nonequivalent.

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Matched-subjects design at psychology-glossary.com■■■■■■
Matched-subjects design refers to a research design comparing separate groups of individuals where each . . . Read More
Nonequivalent control group design at psychology-glossary.com■■■■■
Nonequivalent control group design refers to a research design in which the researcher does not randomly . . . Read More
Subject at psychology-glossary.com■■■■■
- In the context of psychology, a "subject" is an individual who participates in a research study or . . . Read More
Differential research design at psychology-glossary.com■■■■
Differential research design is defined as a Non-experimental research design that compares pre-existing . . . Read More
Observational research design at psychology-glossary.com■■■■
Observational research design: Observational research design refers to descriptive research in which . . . Read More
Cross-Sectional Study at psychology-glossary.com■■■■
Cross-Sectional Study refers to a a study in which separate groups of subjects at different ages are . . . Read More
Case study at psychology-glossary.com■■■■
Case study refers to a research design for in-depth investigation of a person or small group of individuals. . . . Read More
Single-case experimental design at psychology-glossary.com■■■■
Single-case experimental design refers to research tactic in which an independent variable is manipulated . . . Read More
Mixed Design at psychology-glossary.com■■■■
Mixed Design refers to an experimental design containing both within- and between-subject independent . . . Read More
Sequential design at psychology-glossary.com■■■■
Sequential design refers to combination of cross-sectional and longitudinal designs involving repeated . . . Read More