Participants for a Treatment Group Are Chosen Because They Score

question 13

Multiple Choice

Participants for a treatment group are chosen because they score very low on a pretest measure of performance.When their performance improves on the posttest,the researcher

• A)can be confident that the treatment was effective.
• B)can rule out testing and instrumentation threats to internal validity.
• C)should consider the possibility that statistical regression influenced posttest scores.
• D)must conclude that additive effects with selection are responsible for the outcome.

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Definitions:

Distort

To twist information or facts, thus altering their original and intended meaning or perception.

Cover Up

An attempt to prevent the discovery of wrongdoing, errors, or a scandal.

Incremental Approaches

A method of problem-solving or project management that involves making small, manageable changes or improvements over time, rather than implementing a large change all at once.

Indirect Form

A manner of communication or influence that is not direct or straightforward, often implying or suggesting rather than explicitly stating.