Examlex
In the percent problem, " what number is 3% of 68? ", the base is 3%.
Reversed-Treatment Pretest-Posttest Design
A research design where participants receive treatments in reverse order across two periods, allowing the examination of treatment effects over time.
Selection-By-Maturation Interaction
A potential threat to internal validity in experiments, caused when differences between groups change over time in a way that affects the dependent variable.
Pretest Sensitization
The effect that participation in a pretest may have on subjects' behavior in subsequent phases of a study, potentially biasing the results.
Time-Series Designs
Research methods that involve repeated observations of the same variables (e.g., individuals) over short or long periods of time.
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