Author Question: A potential problem in an experimental study is the high risk of self-selection bias. A) True B) ... (Read 90 times)

mckennatimberlake · **on:** Jul 8, 2018

A potential problem in an experimental study is the high risk of self-selection bias.

A) True
B) False

Question 2

A p-value is a measure of the likelihood that the statistical results were obtained in error. A confidence interval, on the other hand, provides which of the following?

A) The range of the measured values in the sample reported in the research report
B) The probability that similar results will be obtained in error, in the future
C) The range of probable values of the variable in the population
D) The likelihood that the results will be useful in practice

mmj22343 · **Reply #1 on:** Jul 8, 2018

Answer to Question 1

B

Answer to Question 2

C
Feedback:
A p-value offers information that is important, but incomplete. Confidence intervals (CIs), by contrast, communicate information about how precise (or imprecise) the study results are. CIs indicate the strength of evidence about quantities of direct interest, such as treatment benefit.