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Table 3 Interpretation of statistical tests

From: A review of patient-reported outcome measures to assess female infertility-related quality of life

Property

Statistical test

Value

Interpretation

Internal consistency reliability [65]

Cronbach’s α

>0.70

Acceptable

Test-retest reliability [66]

Intraclass Correlation Coefficient

>0.75

Good reliability

Concurrent/convergent validity [63]

Spearman’s rank correlation coefficient

r ≤ 0.25

r = 0.26–0.49

r = 0.50–0.69

r = 0.70–0.89

r ≥ 0.90

Little if any correlation

Low correlation

Moderate correlation

High correlation

Very high correlation