Randomization refers to the process whereby individuals are assigned to study groups without biases or differences resulting from selection.

A technique for assigning experimental subjects to experimental and control groups randomly.

The use of a random process to help avoid a systematic relationship between two variables. The intent is to disrupt any systematic relationship that might exist between extraneous variables and the independent variable.
Other /More definition:
randomization refers to method for placing individuals into research groups that assures each an equal chance of being assigned to any group, thus eliminating any systematic differences across groups.

Related Articles

Experimental method at psychology-glossary.com■■■■■■■■■■
Experimental method refers to a research method used to uncover cause-and-effect relationships between . . . Read More
Experimental research at psychology-glossary.com■■■■■■■■■■
Experimental research is defined essentially as research in which the causal (independent ) variable(s) . . . Read More
Between-Subjects Design at psychology-glossary.com■■■■■■■■
Between-Subjects Design refers to a research design in which different groups of participants are randomly . . . 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
Probability sampling at psychology-glossary.com■■■■■■■■
Probability sampling refers to a research strategy that involves acquiring a random sample for inclusion . . . Read More
Experiment at psychology-glossary.com■■■■■■■■
experiment refers to research method that can establish causation by manipulating the variables in question . . . Read More
Mixed Design at psychology-glossary.com■■■■■■■■
Mixed Design refers to an experimental design containing both within and between subject independent . . . Read More
Random Assignment at psychology-glossary.com■■■■■■■
Random Assignment refer to the assignment of Research participants to treatment conditions whereby each . . . Read More
Internal validity at psychology-glossary.com■■■■■■■
Internal validity refers to the certainty that experimental interventions did indeed cause the changes . . . Read More
Analogue study at psychology-glossary.com■■■■■■■
Analogue study refers to a investigation that attempts to replicate or simulate, under controlled conditions, . . . Read More