A Researcher Uses a Repeated-Measures Study to Compare Two Treatment

question 39

Multiple Choice

A researcher uses a repeated-measures study to compare two treatment conditions with a set of 20 scores in each treatment.What is the value of df for the repeated-measures t statistic?

• A)18
• B)19
• C)38
• D)39

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Definitions:

Repetition-with-variation

The practice of repeating an element but altering it each time, to create pattern and interest, often seen in music, literature, and art.

Advertisement Wear-out

A phenomenon where an advertisement loses its effect on the audience due to excessive exposure.

Halo Effect

A cognitive bias where an individual's overall impression of a person influences their feelings and thoughts about that person's character.

Central Route

denotes a pathway of persuasion that involves thoughtful consideration of the arguments presented, leading to cognitive processing that can influence attitudes strongly and durably.