In Alternative Model 2, the items were attributed either to applying and analyzing or to creating.
Each of the individual items was attributed to one of the strategies in the Zinberg model by two researchers.
The relatively low response rate for some items was attributed to these two factors.
Despite covering only 12.7% of the 3-digit codes in Environmental Factors, 21interRAI items were attributed to the domain of Support and Relationships (E-Chapter 1).
Torgerson called this scaling approach "Subject-centred approach", where the systematic variation in the reactions of the subjects to the items is attributed to individual differences in the subjects [ 26].
Using Principal Component Analysis, the items were attributed to 10 components or dimensions of adolescent stressor experiences (stress of home life, school performance, school attendance, romantic relationships, peer pressure, teacher interaction, future uncertainty, school/leisure conflict, financial pressure and emerging adult responsibility).
An item was attributed to a single factor if it loaded 0.45 or more on a single factor.
The proportion of list items that are attributed to the correct source is given as 'source hits'; the proportion of incorrect attributions as 'source errors'.
This last step ensures that group (or time-related) differences obtained from comparisons of item composite scores (i.e., summing and averaging across individual items) can be attributed to substantive differences on the construct and are not due to differences in proportion of error variance in item-level scores.
On the other hand, the items clustering around the interpersonal relations theme are more in line with a trait concept, since the content of these items could be attributed to stable problems of personality [ 11].
