Skip to main content

Table 4 Internal reliability of the nutrition knowledge questionnaire for athletes for the first data collection, also test retest reliability and identical response rate over two data collection periods separated by 3 weeks

From: A valid and reliable nutrition knowledge questionnaire for track and field athletes

Nutrition knowledge sub-section (n) Internal reliabilitya Test - retest correlationb Identical responses from both tests (all) (%) Identical responses from both tests (NUT) (%) Identical responses from both tests NONUT) (%)
Carbohydrate (23) .84 .95 91.0 94.5 87.5
Protein (18) .81 .94 89.9 92.5 87.4
Fat (23) .78 .97 93.5 93.4 93.6
General nutrition (31) .86 .92 87.7 90.8 84.5
Fluid (15) .82 .91 84.0 84.6 83.3
Sport nutrition (35) .92 .87 83.4 84.5 82.4
Total (145) N/A .98 88.0 89.8 86.1
  1. NUT Nutrition trained group, NONUT No nutrition training group
  2. aChronbach’s alpha
  3. bPearson’s correlation significant at < 0.05 (2-tailed)