Skip to main content

Table 6 Cronbach’s alpha scale

From: Rethinking self-reported measure in subjective evaluation of assistive technology

Cronbach’s alpha Internal consistency
α ≥ 0.9 Excellent (high-stakes testing)
0.7 ≤ α < 0.9 Good (low-stakes testing)
0.6 ≤ α < 0.7 Acceptable
0.5 ≤ α < 0.6 Poor
α < 0.5 Unacceptable