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.
Question 2
A characteristic of case studies is that they
a. are not subject to prejudice.
b. do not solve problems.
c. have their greatest advantage in their depth.
d. have the major advantage of producing valid generalizations.
