Refer to Exhibit 20-2. The study comparing the effectiveness of two methods of teaching reading did not look at the influence of students' gender or their verbal aptitude on achievement

a. The problem lacks practical or theoretical significance.
b. The hypothesis or question is too broadly stated.
c. The procedures are lacking in detail.
d. Relevant variables are not considered.
e. The design is not appropriate for answering the research question.


ANS: D

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a. dietary inadequacies. b. excessive maternal stress. c. inadequate lighting during neonatal development. d. excessive neonatal stimulation.

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