- Mortality as a threat to internal validity : Mortality as a threat to internal validity refers to a difference in the dependent variable due to differential participant attrition from groups exposed to different levels of the independent variable.
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| Participant attrition at psychology-glossary.com | ■■■■■■ |
Participant attrition refers to the loss of participants that occurs during the course of a research . . . Read More | |
| History as a threat to internal validity at psychology-glossary.com | ■■■■■■ |
- History as a threat to internal validity : History as a threat to internal validity is a change in . . . Read More | |
| Internal validity at psychology-glossary.com | ■■■■■ |
Internal validity refers to the certainty that experimental interventions did indeed cause the changes . . . Read More | |
| Differential effects at psychology-glossary.com | ■■■■■ |
Differential effects is a term used in a Research study that refers to the time related threats to internal . . . Read More | |
| Assignment bias at psychology-glossary.com | ■■■■■ |
Assignment bias refers to a threat to internal validity that occurs when the process used to assign different . . . Read More | |
| Diffusion at psychology-glossary.com | ■■■■■ |
Diffusion refers to a threat to internal validity that occurs when a treatment effect spreads from the . . . Read More | |
| Nonexperimental research strategy at psychology-glossary.com | ■■■■■ |
Nonexperimental research strategy refers to a research strategy that attempts to demonstrate a relationship . . . Read More | |
| Experimenter bias at psychology-glossary.com | ■■■■■ |
Experimenter bias refers to the iInfluence of the experimenter''s expectations or personal beliefs on . . . Read More | |
| Matched-groups design at psychology-glossary.com | ■■■■ |
Matched-groups design is defined as a method of assigning participants in between-subjects designs in . . . 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 | |