Adolescent children of mothers who were home-visited as part of the Nurse–Family Partnership __________ than comparison-group agemates
A) scored lower in impulsivity and overactivity
B) had lower academic achievement scores
C) showed more aggressive behavior
D) reported less alcohol and drug use
Answer: D
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Which of the following is a common ethical guideline suggested by the American Psychological Association?
a. Participants may not withdraw once they start. b. Participants must be allowed to make an informed decision. c. Participants cannot be subjected to shock of any kind. d. Participants cannot be deceived about aspects of the research. e. Participants must be paid for their participation in a research project.
Dr. Chiu, a reading specialist, wants to know if third-graders who learned to read predominantly by phonics are better at comprehending text than children who learned to read predominantly by whole language
To find out she decides to randomly assign two groups of first-graders to either a phonics-based reading program or a whole language-based reading program. She will then give each group a reading comprehension test when they reach third grade. This study provides an example of a(n) a. experiment. c. treatment group. b. control group. d. sample.