Examlex
The communication process begins with the ___________.
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.
Posttest-Only Nonequivalent Groups Design
An experimental design in which different groups are compared only after the treatment or intervention, without a pretest comparison.
Pretreatment Differences
Variations among participants in a study that exist before the intervention or treatment is applied.
True Experimental Design
A research design that includes random assignment of participants to conditions and manipulation of an independent variable to determine its effect.
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