When experiments are used to determine whether therapy is effective, the therapy can be deemed effective only if the
a. control group shows improvement, but the experimental group shows none.
b. waiting list group shows dramatic improvement over the experimental and control groups.
c. experimental group shows more improvement than the control group.
d. experimental and waiting list groups show improvement and the control group shows no improvement.
ANSWER: c
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This is known as a ______, because you are comparing scores for a sample from before to the treatment to after the treatment.
What will be an ideal response?
Individuals who are socially isolated are at lesser risk for health problems than those that are socially engaged
Indicate whether the statement is true or false.
With age, ships in the social convoy __________
A) increase in number
B) increase in size
C) exchange places
D) decrease in importance
Nest building behavior is regulated by ______________ in pregnant rats
a. progesterone b. estradiol c. prolactin d. oxytocin