In a Test of the Impact of Delay on Recall

question 8

Multiple Choice

In a test of the impact of delay on recall, a researcher has two groups study a list of words. For the immediate recall condition, the researcher has the subjects recall the words immediately after the study period has ended. For the delay recall condition, the researcher has the subjects recall the words three minutes after the study period has ended. The researcher found that there was not a significant difference in the number of words recalled between the two conditions. The researcher decides to conduct the study again, this time using fifteen minutes as the delay between studying and recalling the list. The researcher is trying to optimize t by

• A) increasing the total size of the study.
• B) using the dependent t test rather than independent t test.
• C) decreasing the variability of response within groups.
• D) driving the means further apart.

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Definitions:

Trait Theory

A theory in psychology that posits personality is composed of a number of broad traits, or characteristic ways of behaving.

Psychodynamic Theory

A theory in psychology that emphasizes systematic study of the psychological forces that underlie human behavior, feelings, and emotions and how they might relate to early experience.

Locus of Control

A psychological concept that refers to how strongly people believe they have control over the situations and experiences that affect their lives.

Reticular Activating System

A network of neurons located in the brainstem that plays a crucial role in controlling arousal and alertness.