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.
B
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Which area of the brain undergoes considerable development during the adolescent years?
A. occipital lobe B. cerebral cortex C. corpus callosum D. prefrontal cortex
What is one of the findings from the 2013 National College Health Assessment study?
a. The majority of males reported 3 or more sexual partners in the last year, while the majority of females reported only 2. b. Nearly 25% of students reported engaging in anal sex within the past 30 days c. The majority of students reported having only one or zero sexual partners in the previous year. d. Over 60% of heterosexual students reported that they or their partner did not use contraception during their last sexual encounter.
The formation of new synapses is called ____
a. synaptogenesis b. differentiation c. migration d. fusion
The diathesis–stress model of mental illness is most related to the concept of:
A) heritability. B) epigenetics. C) the third-variable problem. D) external validity.