When Participants Begin an Experiment but Fail to Complete It,the

question 43

Multiple Choice

When participants begin an experiment but fail to complete it,the internal validity of the experiment can be threatened.Which of the following types of subject loss poses the most serious threat to internal validity?

• A) the loss occurs because of an error by the experimenter.
• B) the loss leads to different numbers of participants in the groups in the experiment.
• C) the loss occurs because of equipment failure.
• D) the loss occurs because of some characteristic of the participant that is related to the outcome of the study.

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Definitions:

Laboratory Conditions

A controlled environment created for scientific research or experiments where variables can be manipulated and observed.

Controlled

Refers to an experimental condition or environment that is manipulated and regulated by researchers to isolate variable effects.

Q-Data

Self-report data or subjective measures obtained from questionnaires and psychological tests that provide insights into an individual's personality traits and emotional state.

Introspection

The examination of one's own conscious thoughts and feelings, often used as a method of psychological analysis.