Knowing how to calculate a z-score can be useful in testing ______.
A. variable distributions
B. population samples
C. hypotheses
D. assumptions
Answer: C
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A participant who interprets the instructions differently than the researcher intended most threatens the
a. external validity of the experiment b. replicability of the experiment c. theoretical interpretation of the results d. validity of the statistics
After conducting many studies in search of the engram, Lashley concluded that the engram
a. is not located in the brain. b. will most likely never be found. c. will be found in certain localized regions of the brain. d. was widely distributed throughout the entire cortex.
The _______ theory of aging suggests that unstable oxygen molecules cause damage to the structure of cells, increasing with age
a) wear-and-tear b) cellular clock c) disengagement d) free radical
According to the article Zipping Up the Genes about twins reared apart,the number which best
summarizes the amount of variance in personality which is accounted for by genetic factors is (a) zero (b) .25 (c) .50 (d) .90