Internal validity refers to the certainty that experimental interventions did indeed cause the changes observed in the study group; also the control over confounding factors which tend to invalidate the results of an experiment .
Internal validity refers to the extent to which an intended manipulation of a variable, rather than extraneous influences, accounts for observed results, changes, or Group differences.
Other /More definition:
internal validity refers to extent to which the results of a study can be attributed to the independent variable after confounding alternative explanations have been ruled out.
|Randomization at psychology-glossary.com||■■■■■■■|
Randomization refers to the process whereby individuals are assigned to study groups without biases or . . . Read More
|Experimental research at psychology-glossary.com||■■■■■■|
Experimental research is defined essentially as research in which the causal (independent ) variable(s) . . . Read More
|Confound at psychology-glossary.com||■■■■■■|
confound refers to any factor occurring in a study that makes the results uninterpretable because its . . . Read More
|Internally valid at psychology-glossary.com||■■■■■|
Internally valid is a term used in an experiment ; an experiment is considered internally valid to the . . . Read More
|Acculturation at psychology-glossary.com||■■■■■|
Acculturation refers to the process by which members of minority groups come to identify with and feel . . . Read More
|Confounding variable at psychology-glossary.com||■■■■■|
Confounding variable: confounding variable refers to variable in a research study that was not part of . . . Read More
|Experimental method at psychology-glossary.com||■■■■■|
Experimental method refers to a research method used to uncover cause-and-effect relationships between . . . Read More
|Dependent variable at psychology-glossary.com||■■■■■|
A dependent variable is what you measure in the experiment and what is affected during the experiment. . . . Read More
|Effect at psychology-glossary.com||■■■■■|
Effect: ; - In psychology, an effect refers to the influence that one variable has on another. In psychological . . . Read More
|Factor at psychology-glossary.com||■■■■■|
Factor is defined as the hypothesized dimension underlying an interrelated set of variables; a variable . . . Read More