Examlex
The key to good scenario writing is to focus on the few readily identifiable, but unpredictable, factors that will have the greatest impact on the topic in question.
One-Group Pretest-Posttest Uninterpretable Design
Refers to a simplistic experimental design where a single group of subjects is tested before and after an intervention without a control group, making causal interpretations difficult.
Internal Validity
The extent to which a study can demonstrate a causal relationship between variables, free of confounding factors.
Random Assignment
is a process used in experimental designs to allocate participants to different groups in a study by chance, minimizing pre-existing differences among those groups.
Pretest-Posttest Nonequivalent Groups Design
A quasi-experimental design involving two groups that are not randomly assigned, with both groups measured both before (pretest) and after (posttest) a treatment or intervention.
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