Exam 1

1. Metainformation

   Tag	Value
   file	Reliability_eur-reliability-202-en_eur-reliability-202-en
   name	eur-reliability-202-en
   section	Reliability/Analysis/Cronbach's alpha
   type	schoice
   solution	FALSE, TRUE, FALSE, FALSE
   Type	Conceptual
   Program
   Language	English
   Level	Statistical Reasoning

   Question

   Consider the following statements about regression to the mean:

   1. Regression to the mean happens when the mean of a sub sample is not equal to the mean of the complete sample.

   2. The higher the reliability of a tests, the larger the effect of regression to the mean

   
   
   1. FALSE: Both statements are correct.
   2. TRUE: Statement 1 is correct and statement 2 is incorrect.
   3. FALSE: Statement 2 is correct and statement 1 is incorrect.
   4. FALSE: Both statements are incorrect.
   
   

   Solution

   Statement 1 is true: every sub sample that has a mean that differs from the sample mean will have a sub sample mean that is closer to the sample mean on a second occasion. Statement 2 is not true: the higher the reliability, the smaller the effect of regression to the mean.

   
   
   1. False
   2. True
   3. False
   4. False