Skip to main content

Table 3 BARSTL person and item reliability values

From: Challenging instructors to change: a mixed methods investigation on the effects of material development on the pedagogical beliefs of geoscience instructors

  Pre-development Post-development
  Person Item Person Item
Separation index 1.90 3.11 5.03 3.46
Reliability 0.78 0.91 0.86 0.92
  1. Values of reliability and separation indices calculated using Winsteps software for the pre- and post-development BARSTL surveys