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Table 4 Domain Statistics

From: The development and validation of an instrument to measure the quality of health research reports in the lay media

Domain

Number of items

Mean (%)

SD (%)

Range

Cronbach’s Alpha

Background (/35)

5

18.39 (52.54)

5.67 (18.90)

8-30

0.58

Sources (/18)

3

8.89 (49.39)

4.25 (23.61)

0-18

0.49

Results (/18)

3

11.96 (66.44)

2.26 (12.56)

4-18

0.71

Context (/18)

3

9.91 (55.06)

4.44 (24.67)

0-18

0.55

Validity (/18)

3

2.71 (15.06)

4.43 (24.61)

0-16

0.86

  1. The italicized figures indicate item-total correlation coefficients outside the accepted range