The mean of a distribution of test scores will always have a z score of ______.
A. 0
B. 1
C. 33%
D. 68%
Ans: A
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In an experiment set up to study whether participants become more or less aggressive when they view either a violent or a non-violent film, what is the independent variable?
a. the violence level of the films b. the participants' aggression c. the participants' perceptions of violence d. the participants' gender and age e. the difference in aggression between the groups
What term do psychologists use to describe positive feelings toward and a desire to meet and get close to other people?
a) love b) appeal c) interpersonal attraction d) cognitive dissonance
Graphs are useful in determining the type of interaction that occurred and should be followed up with additional statistical tests to determine exactly where the differences between the conditions in the interaction are in order to best describe ______.
a. main effect b. order effect c. interaction effect d. primary effect
The correlation coefficient can identify the direction and strength of a relationship between two factors.
Answer the following statement true (T) or false (F)