Only about ______ of the variability in aggression can be accounted for by heredity.
A. 75%
B. 50%
C. 25%
D. 35%
Answer: B
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In a drug experiment, all participants are given the same instructions, and everyone gets a pill or injection with the participants in the experimental group receiving the experimental drug, and those in the control group receiving a placebo. Although the experimenter knows which subjects are in the experimental group and which are in the control group, the subjects themselves do not know who is
in which group or who received the real drug and who the placebo. This experimenter is using a. a double-blind study to control for researcher bias. b. a single-blind study to control for research participant bias. c. random selection to control the extraneous variables. d. random assignment to control the dependent variables.
Delusions can be described as __________. For example, Sally is convinced that she is the reincarnation of a famous historical figure
a. false beliefs
c. hallucinations
b. disconnected ideas
d. paranoid
A range of about four to 12 feet eliminates most touching and formalizes conversations by requiring greater voice projection. This distance zone is called distance
a. public b. social c. territorial d. personal
Biology and experience combine to influence personality
Indicate whether the statement is true or false.