An Experimenter Conducts a Study in Which 16 People Are

question 15

Multiple Choice

An experimenter conducts a study in which 16 people are asked to pedal a bicycle for 40 minutes and then perform a memory task.They all then lie down for two hours and then perform a recognition memory task.Which of the following statements is true?

• A)Memory task is an extraneous variable.
• B)Memory task is manipulated between-subjects.
• C)Memory task is manipulated both between-subjects and within-subjects.
• D)Memory task is manipulated within-subjects.
• E)Memory task is the dependent variable

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Definitions:

Amplitude

Amplitude refers to the maximum extent of a vibration or oscillation, measured from the position of equilibrium.

Weber's Law

A principle stating that the change in a stimulus that will be just noticeable is a constant ratio of the original stimulus.

Just Noticeable Difference

The minimal change in a stimulus that can just barely be detected by an organism.

Absolute Threshold

The lowest level of stimulation that a person can consciously detect 50 percent of the time the stimulation is present.