Author Question: One of the Bradford-Hill criteria for causality is randomization. A) True B) ... (Read 26 times)

go.lag · **on:** Jul 8, 2018

One of the Bradford-Hill criteria for causality is randomization.

A) True
B) False

Question 2

Which of the following statements is true?

A) The results of statistical testing have direct meaning.
B) Evaluating the credibility of a study typically involves a careful assessment of methodologic decisions.
C) Support of a researcher's hypothesis through statistical testing offers proof of its veracity.
D) A correlation between two variables indicates that the independent variable caused the dependent variable.

Koolkid240 · **Reply #1 on:** Jul 8, 2018

Answer to Question 1

B

Answer to Question 2

B
Feedback:
A credibility assessment requires a careful analysis of the study's methodologic and conceptual limitations and strengths. Statistical testing results do not always have direct meaning, but often must be interpreted. Empirical evidence supporting research hypotheses never constitutes proof of their veracity. Correlation between two variables does not prove causation.