The data collection method upon which Piaget based his theory was
a. observation of individuals in locations such as homes, schools, and playgrounds.
b. an interview technique of asking questions and at times allowing responses to determine the next question.
c. controlled experiments utilizing dependent and independent variables.
d. reflection upon his own cumulative life experience.
B
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True or False: The two-way ?2 is a parametric test.
a. True b. False
Which strategy is probably the MOST effective way to deal with stress across one's life span?
A) maintaining a highly emotional state of mind B) having an alcoholic drink or two per day C) displacing anger by reacting with rage towards inanimate objects D) having social support through family or friends
Researchers use _________________ to determine whether the difference between groups is statistically significant
A) correlation coefficients B) descriptive statistics C) hypothesis testing D) vector analysis
Stimulants have which of the following effects?
a) increased alertness and blood pressure b) increased cerebral blood flow c) increased sleepiness and sleep d) increased appetite and decreased pulse