highly significantp < .001
Overall, there was a highly significant linear trend from 7 to 11, p < .001.
Overall, there was a highly significant linear trend from 7 to 11, p < .001.
Wald tests, which examined the overall effect of each of the five variables in this multivariate model, revealed that prosocial score at age 11 was the only variable which showed an overall significant effect in predicting group membership, χ 2 (3) = 19.2, p < .001, while emotional symptoms was of borderline significance, χ 2 (3) = 7.71, p = .053.
In addition, expressive language at 11 and reading comprehension at 11 (both using raw scores) were marginally significant, χ 2 (2) = 5.75, p = .056 and χ 2 (2) = 5.69, p = .058, respectively.
The finding was unchanged when expressive language and reading comprehension at 11, which were of marginal significance in the univariate multinomial logistic regression analyses, were additionally included into the multivariate model with the other five predictors.