Appendix Table C.
Item Factor Loadings for the Strength and Difficulty Questionnaire
| Time 1 | Time 2 | |||
|---|---|---|---|---|
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| 1-factor model | 4-factor model | 1-factor model | 3-factor model | |
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| Emotion Symptom Subscale | ||||
| Often complains of headaches, stomach-aches or sickness | .435 | .390 | .414 | .399 |
| Many worries, often seems worried | .451 | .561 | .519 | .590 |
| Often unhappy, down-hearted or tearful | .442 | .552 | .572 | .765 |
| Nervous or clingy in new situations, easily loses confidence | .481 | .510 | .295 | .267 |
| Many fears, easily scared | .342 | .393 | .312 | .443 |
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| Conduct Problem Subscale | ||||
| Often has temper tantrums or hot tempers | .325 | .368 | .526 | .449 |
| Generally obedient, usually does what adults request (R) | .167 | .217 | .166 | .323 |
| Often fights with other children or bullies them | .249 | .449 | .341 | .632 |
| Often lies or cheats | .263 | .500 | .367 | .613 |
| Steals from home, school or elsewhere | .092 | .255 | .281 | .527 |
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| Hyperactivity Subscale | ||||
| Restless, overactive. cannot stay still for long | .253 | .508 | .173 | .470 |
| Constantly fidgeting or squirming | .292 | .596 | .336 | .909 |
| Easily distracted, concentration wanders | .187 | .192 | .395 | .162 |
| Thinks things out before acting (R) | −.076 | −.081 | −.101 | .094 |
| Sees tasks through to the end. good attention span (R) | −.055 | −.023 | .186 | .079 |
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| Peer Problems | ||||
| Rather solitary, tends to play alone | .397 | .417 | .050 | – |
| Has at least one good friend (R) | .202 | .239 | −.103 | – |
| Generally liked by other children (R) | .076 | .121 | −.004 | – |
| Picked on or bullied by other children | .513 | .537 | .405 | – |
| Gets on better with adults than with other children | .331 | .344 | .026 | – |
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| Confirmatory Factor Analysis Model Fit | 1-factor model: | 1-factor model: | ||
| χ2 (170) = 249.583, | χ2 (170) = 299.959, | |||
| p=.170, CFI=.613, | p<.001, CFI=.406, | |||
| RMSEA=.055; | RMSEA=.086; | |||
| 4-factor model: | 3-factor model: | |||
| χ2 (164) = 215.674, | χ2 (87) = 123.968, | |||
| p=.004, CFI=.749, | p=.006, CFI=.782, | |||
| RMSEA=.045 | RMSEA=.064 | |||
Note. (R) indicates item was reverse coded. Results indicate poor one-factor model fit. The 4-factor model did not converge using the time 2 data, which might be due to the smaller sample or low correlations among peer problems items. We refit the model by excluding items from Peer Problem subscale and examining the 3-factor model (reported in Table -Time 2).