Researchers are attempting to assess if cognitive behavioural therapy (CBT) is an effective treatment for depression. Participants with unipolar depression are assessed and then randomly assigned to either a treatment group or a control group. The treatment group receives CBT twice per week for 6 weeks. The control group receives no treatment. At the end of the 6 weeks, the depression levels of
both groups are reassessed. This study found that CBT treatment was more effective than no treatment but is limited because it did not control for:
A) natural improvement.
B) placebo effects.
C) preexisting differences among participants.
D) participant gender.
B) placebo effects.
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In which of the following experiments could we NOT use random assignment?
a. a comparison of groups receiving three different levels of a drug b. a comparison of driving errors with and without consuming alcohol c. the comparison of people from several religious groups in terms of acceptance of others' beliefs d. None of the above could use random assignment.
The ________ boundary of the ZPD is problems the child cannot solve, no matter how much help is given
Fill in the blanks with correct word
You are the youngest child in an American family that generally gets along well. Your older siblings have apartments of their own, and you just left for college. Your parents are probably feeling a mixture of ____
a. great loss and remorse b. happiness and euphoria c. sadness and depression d. loss and liberation
In general, adolescents and emerging adults in developed countries are __________.
A. more religious than their counterparts in developing nations B. just as religious as their counterparts in developing countries C. more religious than their counterparts in traditional cultures D. less religious than their counterparts in developing countries