If you are presented with two cages of rats (in which each cage contains both males and females in equal numbers), and the rats in one cage seem much more aggressive and active, you might hypothesize that the rats in the cage were
A) postnatally exposed to serotonin.
B) deprived of sleep.
C) fed a high-fat diet.
D) prenatally exposed to extra estrogen.
E) prenatally exposed to extra androgen.
E
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It is given to a large and random sample of
college students. It is found that the test correlates in a highly positive manner with the students' GPAs. The test designer may be justified in claiming that the test is valid. Indicate whether this statement is true or false.
The coefficient of determination is the
a. number of degrees of freedom. b. difference between predicted and observed values of Y. c. mean. d. squared correlation coefficient.
In an experiment examining the effects of task difficulty (easy/hard) for men and women, the factors are ____
a. male and female b. easy and hard c. male, female, easy, and hard d. difficulty and gender
The period from conception to implantation is called the ______ state
Fill in the blank(s) with correct word