Exam 1

1. Metainformation

   Tag	Value
   file	Reliability_vufsw-cronbach's_alpha-1254-en_vufsw-cronbach's_alpha-1254-en
   name	vufsw-cronbach's alpha-1254-en
   section	reliability/analysis/cronbach's alpha
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	conceptual
   Program	NA
   Language	English
   Level	statistical reasoning

   Question

   For his thesis research, a graduate student measured the degree of self-confidence of students with a scale consisting of 6 items, whereby the answer categories are ranging from 1 (little self-confidence) to 10 (a lot of self-confidence). The Cronbach’s alpha of this scale is 0.68.

   How could the Cronbach’s alpha be increased?

   
   
   1. TRUE: Add an additional item to the scale.
   2. FALSE: Remove an item with a high corrected item-total correlation.
   3. FALSE: Remove an item with a value of 0.65 for “Cronbach’s alpha if Item Deleted”.
   4. FALSE: Recode all the answer categories of items, so that 1 means “a lot of self-confidence” and 10 means “little self-confidence”.
   
   

   Solution

   You can increase the Cronbach’s alpha by adding an extra item.

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