Researchers using PET or fMRI find that a certain brain area becomes highly active while people are frightened. Later they measure activity in that area for many people, and identify the people with the highest activity. What, if anything, can we conclude about those people based on this evidence?

a. Those people were frightened at the time of the measurement

b. Those people have a tendency to become frightened easily.
c. Those people were excited in some other way at the time of the measurement.
d. We cannot draw any of these conclusions.

d

Psychology

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If an operant reinforcer is only given after a desired response has occurred, the reinforcer is said to be

a. cue dependent. b. a conditioned response. c. a successive approximation. d. response contingent.

Psychology

An independent-measures research study uses a total of 18 participants to compare two treatment conditions. If the results are used to construct a 90% confidence interval for the population mean difference, then the t values will be ±1.746

Indicate whether the statement is true or false

Psychology