Exam 1

1. Metainformation

   Tag	Value
   file	Reliability_uu-reliability-023-en_uu-reliability-023-en
   name	uu-reliability-023-en
   section	Reliability
   type	schoice
   solution	FALSE, FALSE, FALSE, TRUE
   Type	Calculation, Case
   Language	English
   Level	Statistical Literacy

   Question

   A test for measuring the extent to which researchers honor scientific integrity consists of twenty items. The test has a reliability rXX’ = .50. This is rated by the Cotan as inadequate. Desirable is an estimated reliability of at least .70. It is decided to extend the test by five equivalent items.

   Does this extension realize an expected test score reliability (rXX’) of .70?

   
   
   1. FALSE: Yes, the estimated reliability is then: rXX’ ≥ .85
   2. FALSE: Yes, the estimated reliability is then: .85 > rXX ≥ .70
   3. FALSE: No, the estimated reliability is then: .70 > rXX’ ≥ .60
   4. TRUE: No, the estimated reliability is then: rXX’ < .60
   
   
   1. This answer is incorrect.
   2. This answer is incorrect.
   3. This answer is incorrect.
   4. This answer is correct.