A nurse researcher determines an instrument's homogeneity using ...

[rlane42]

A nurse researcher determines an instrument's homogeneity using which type of reliability?
 
  a. Split-half reliability
  b. Test-retest reliability
  c. Interrater reliability
  d. Alternate form reliability

Question 2

A nurse researcher would want to use a Kuder-Richardson (KR-20) coefficient to establish the internal consistency of an instrument in which case?
 
  a. When questions are open-ended
  b. When multiple choice tests are analyzed
  c. When the instrument uses a Likert-type response scale
  d. When the instrument is designed to measure more than one concept

[k.lashomb]

Answer to Question 1

ANS: A

Feedback
A Instrument homogeneity is established with split-half reliability.
B Test-retest reliability establishes instrument stability.
C Interrater reliability is not a homogeneity measure.
D Alternate form or parallel form reliability is not a test of homogeneity.

Answer to Question 2

ANS: B

Feedback
A Open-ended questions elicit textual data that are content analyzed (qualitative analysis).
B The KR-20 coefficient provides estimates of homogeneity used for instruments that have a dichotomous response format.
C Cronbach's alpha coefficient provides estimates of homogeneity when instruments are scaled with ordinal responses.
D The KR-20 coefficient does not apply to this answer.

[rlane42]

Gracias!

[hramirez205]

Excellent