Author Question: A critical appraisal should be a/an: a. analysis of a study's internal validity problems. b. ... (Read 82 times)

bio_gurl · **on:** Jul 8, 2018

A critical appraisal should be a/an:

a. analysis of a study's internal validity problems.
b. balanced appraisal of a study's strengths and weaknesses.
c. criticism of the researcher's faulty decisions.
d. inventory of problems in the study.

Question 2

Research is reported in which the t-test is used to make multiple comparisons within the groups established for the study. Which of the following statements would someone reading the research correctly include in a critique of the study?

a. The researcher did not appear to know how to make correct use of the t-test.
b. The t-test is the correct statistic to use when making comparisons between groups.
c. There is concern over a Type II error caused by the multiple use of t-tests.
d. With no mention of the Bonferroni procedure, it is difficult to judge the levels of significance.

leeeep · **Reply #1 on:** Jul 8, 2018

Answer to Question 1

ANS: B
An intellectual critical appraisal involves careful examination of all aspects of a study to judge the strengths, weaknesses, meaning, and significance of a study.
A thorough critical appraisal contains much more than an analysis of the study's internal validity problems.
A critical appraisal points out both the strengths and weaknesses of a study.
A simple inventory of the study's problems does not constitute a good critique.

Answer to Question 2

ANS: D
It is appropriate to comment on the amount of information provided on the use of specific procedures, in regard to evaluating if significance has been reached.
Making statements alluding that the researcher lacks knowledge is inappropriate in a critique.
t-test is not the correct statistic to use when making comparisons between groups.
Type I errors are of more concern when there is a multiple use of t-tests.