Table 6.
Intraclass correlation coefficients and means of paired samples t-tests for two-week test-retest reliability for the Chrononutrition Profile-Questionnaire (N = 146).
| Item | Intraclass Correlation Coefficient | Paired Samples T-Test | |
|---|---|---|---|
| Mean (SD) at Initial Test | Mean (SD) at Retest | ||
| Chrononutrition Preferences | |||
| Morning Latency | .73*** | 59.52 (43.41) | 56.78 (36.74) |
| Evening Latency | .64*** | 138.46 (68.75) | 142.64 (72.84) |
| Chrononutrition Behaviors – Free Days | |||
| First Eating Event | .77*** | 11:13 (1:28) | 11:12 (1:31) |
| Lunchtimea | .39*** | 12:50 (1:34) | 12:59 (1:06) |
| Last Eating Event | .71*** | 20:46 (1:55) | 20:37 (1:52) |
| Chrononutrition Behaviors - Workdays | |||
| First Eating Event | .85*** | 10:05 (1:57) | 10:03 (1:52) |
| Lunchtimeb | .77*** | 12:34 (0:58) | 12:31 (0:57) |
| Last Eating Event | .75*** | 19:59 (1:46) | 19:56 (1:42) |
| Computed Weekly Averages | |||
| Breakfast Frequency | .88*** | 4.06 (2.41) | 4.04 (2.30) |
| Evening Eating | .51*** | 19:51 (2:01) | 19:45 (1:46) |
| After-Dinner Snack Frequency | .75*** | 3.97 (1.96)*** | 3.34 (1.97)*** |
| Evening Latency | .74*** | 230.8 (94.41) | 234.75 (102.53) |
| Eating Window | .79*** | 588.13 (130.09) | 586.18 (126.40) |
Analysis based on sample size of n = 123 due to remaining individuals reporting “I do not eat lunch”.
Analysis based on sample size of n = 139 due to remaining individuals reporting “I do not eat lunch”.
Note. Analyses were based on all available data due to missing items; actual sample sizes ranged from N = 144 to n = 146.
Note. Means for first eating event, lunchtime, last eating event, evening eating represented as HH:MM; means for morning latency, evening latency, and eating window expressed in minutes; and means for breakfast frequency, and after-dinner snack frequency expressed as number of days per week.
Note.
= significant at the p < .001 level.