______ Is a ______, Which Is Used to Describe a ______

question 69

Multiple Choice

______ is a ______, which is used to describe a ______.

• A) ; parameter; sample
• B) s; statistic; population
• C) μ; parameter; population
• D) σ; statistic; sample

---

Definitions:

Pretest Impact

The influence that prior testing might have on the participants' subsequent performance on a posttest, affecting the interpretation of an intervention's effect.

Posttest Scores

The scores obtained from tests administered after an experimental treatment or intervention to evaluate its effects.

Independent Groups Design

A research design in which different groups of participants are exposed to different conditions or levels of the independent variable.

Variable Manipulation

The process of intentionally changing variables to test their effects in an experiment.