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. 2009 Oct 13;3:10. doi: 10.1186/1750-4732-3-10

Table 2.

Research Confidence

FACTOR LOADINGS
Factor 1 Defining Selected Methods (19%)
Describe the purpose/use of a t-test. .692
Describe assumptions for use of a statistical test. .686
Describe the use of statistical regression analysis. .686
Define the purpose of the chi-square statistic. .672
Define a Type-I or Type-II error in a research study. .671
Interpret inferential statistics. .660
Interpret "p-values" for a given results. .659
Identify information needed for perform a power analysis and sample size estimation. .640
Clearly define an outcome measure. .583
Describe the meaning of mean and standard deviation. .481
Factor 2 Developing and Discussing Research (18%)
Interpret descriptive statistics. .694
Critically evaluate a medical research article. .673
Apply the results of a study to aid in developing a differential diagnosis. .576
Present research findings in a poster. .574
Determine the sensitivity and specificity of a test. .562
Select an appropriate statistical method for a research questions.1 .560
Interpret odds ratios.1 .551
Discuss methodological cautions in interpreting research findings of a given study. .538
Correctly recognize different types of research designs. .534
Design your own research study. .529
Present a critical review of the strengths and limitations of a research study. .521
Correctly identify different types of variables. .514
Correctly identify major threats to internal and external validity for a given research design.2 .483
Factor 3 Developing Clinical Research Proposals (15%)
Identify the essential elements of informed consent for research participation. .794
Discuss current ethical issues related to the use of placebos in clinical trials. .752
Explain the purpose of an Institutional Review Board proposal. .735
Discuss the reasons for human subjects protection regulations in research. .635
Correctly identify the essential parts of a research proposal. .546
Efficiently perform a topic-focused literature search.3 .444
Factor 4 Evaluating Research Integrity (11%)
Provide a working definition of validity. .742
Provide a working definition of reliability. .702
Define the concept of variability (systematic and non-systematic). .616

TOTAL VARIANCE EXPLAINED 63%

1 These two items loaded approximately equally in factors 2 and 1

2 This item loaded approximately equally in factors 2 and 3

3 This item loaded approximately equally in factors 2, 3, and 4