Which of these is NOT among the four support structures that protect and nourish the developing organism?
a. The placenta
b. The anoxia
c. The amnion
d. The chorion
B
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A researcher shows a violent film to one group of participants and a nonviolent film to another before giving both groups a test measuring aggressiveness. Which statement is true about this experiment??
a. ? The participants who are shown the violent film are the control group. b. ?The type of film shown is the independent variable. c. ?The nonviolent film is likely to produce a placebo effect. d. ?The violent film is a confounding variable.
In which of the following societies would ageism most likely be seen?
a) Japan b) The Sioux nation c) Nigeria d) Canada
Ruling out plausible rival hypotheses is central to satisfying which criteria for establishing efficient causality?
a. internal validity b. covariation c. temporal precedence d. external validity
According to classic stage theorists, those who did not develop in predictable ways were often thought of as?
What will be an ideal response?