One-hundred-and-three queliminatedes were eliminated from the analysis because one or more items on the questionnaire and/or demographic information such as age, gender, or the guardian's relationship to the child was left unanswered.
All items on the questionnaire were forced onto one factor in Principal Components Analyses of recombined z scores and raw weighted scores.
Frequencies were computed for all items on the questionnaire.
Principal component analysis reduced the 39 items on the questionnaire to 5 factors.
"I worry that some of the items on the questionnaire could be attributed to diabetes rather than to depression," suggesting that there is some overlap between the symptoms of the two disorders, he said.
In particular, the constructs difficulty in child feeding, pushing the child to eat more, and using food to calm the child were present among the mothers but not captured by items on the questionnaire.
Reliability analyses showed strong internal consistency for the three scales of the SCEQ, and each of the 21 items on the questionnaire contributed to the homogeneity of its theoretically developed scale.
Participants were labelled as being of a particular learning style orientation in the present study if they gave enough responses at the usually or often levels for items on the questionnaire.
Four sources for data imputation were used for determining values for unanswered questionnaire items: other items on the questionnaire, related components of SASS08, the 2005 2006 Common Core of Data school survey, and records for sample cases with similar characteristics (US Department of Education 2008).
The items on the questionnaire are described in detail elsewhere.
All participating centers responded to all items on the questionnaire.
