Test-retest reliability of a new questionnaire on the diet and eating behavior of one year old children

BMC Research Notes

Table 4 Breakfast and lunch food, median weekly frequencies and correlation coefficients

	n	Median test	Median retest	Spearman’s r	Cohen’s kappa ¹
Infant cereal, commercial	94	6	6	0.93	0.74
Infant cereal, homemade	94	0	0	0.82	0.67
Unsweetened musli	94	0	0	0.63	0.54
Fresh fruit	94	7	7	0.72	0.50
Pureed fruit, commercial	94	2	2	0.82	0.59
Fresh vegetables	94	7	7	0.74	0.47
White bread	94	0	0	0.43	0.43
Medium brown bread	94	2	5	0.66	0.35
Whole grain bread	94	7	5	0.70	0.52
Cripsbread/rusks	93	0	0	0.62	0.45
Whey cheese	94	0	0	0.71	0.58
Cheese	94	2	2	0.83	0.54
Liver paste	94	5	5	0.79	0.50
Meat spread/cold cuts	94	0	0	0.61	0.43
Fish spread	94	2	2	0.78	0.55
Jam	94	0	0	0.82	0.75
Butter/margarine	94	5	5	0.84	0.45
Other spread²	94	2	2	0.63	0.32

¹Scale and frequency variables were ranked into quartile categories for calculating Cohen’s kappa.
²“Other spread” may refer to an iron-fortified spread omitted from questionnaire but reportedly in widespread use. All correlation measures significant at p ≤ 0.001.

ISSN: 1756-0500