Exam 1

1. Metainformation

   Tag	Value
   file	Reliability_uu-Cronbach's-alpha-013-en_uu-Cronbach's-alpha-013-en
   name	uu-Cronbach's-alpha-013-en
   section	Reliability/Analysis/Cronbach's alpha
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE
   Type	Interpretating output
   Program	SPSS
   Language	English
   Level	Statistical Literacy

   Question

   Prof. A. James is analyzing a survey. One of the scales has 8 questions. When she performs a reliability analysis she finds a Cronbach’s alpha of $0.455$. Below is part of the SPSS output.

   

   Based on these data, Prof. A. James decides not to remove items from this scale. She gives two arguments for this:

   I. Removing items creates the danger of affecting internal validity. II. Because the scale consists of only 8 items, the scale with all 8 items will be more reliable on average than a scale with only 7 or even only 6 items.

   
   
   1. FALSE: Both statements are correct
   2. FALSE: Only statement I is correct
   3. TRUE: Only statement II is correct
   4. FALSE: Neither statement is correct