Exhibit 20-2: Identify the Common Weakness of Research Proposals That

Exhibit 20-2: Identify the common weakness of research proposals that is illustrated in each of the following statements or questions.
-Refer to Exhibit 20-2.School principals are interviewed to determine the impact of "No Child Left Behind" on student performance in mathematics.

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.