TY  - JOUR
PY  - 2006//
TI  - Structural validity of a self-report concussion-related symptom scale
JO  - Medicine and science in sports and exercise
A1  - Piland, Scott G.
A1  - Motl, Robert W.
A1  - Guskiewicz, Kevin M.
A1  - McCrea, Michael
A1  - Ferrara, Michael S.
SP  - 27
EP  - 32
VL  - 38
IS  - 1
N2  - PURPOSE: This study evaluated the factorial validity of a self-report measure of concussion-related symptom severity among a large sample of male, high-school athletes. <br><br>METHODS: Participants (N = 1089) were nonconcussed, male, high-school American football players. All participants completed a single baseline self-report measure of concussion-related symptom severity, namely the graded symptom checklist (GSC). We tested the factorial validity of the measure with confirmatory factor analysis using LISREL 8.50. <br><br>RESULTS: The analysis indicated that a theoretically derived, three-factor model provided a good, but not excellent, fit for the 16-item GSC. Excellent model-data fit was demonstrated for the three-factor model for a 9-item version of the GSC. In both instances, the three factors were best described by a single second-order factor, namely concussion symptomatology. <br><br>CONCLUSIONS: This study provides additional evidence for the factorial validity of a summative self-reported measure of concussion-related symptoms. The factor structure represents a cohesive group of nine symptoms that can be explained by three underlying latent variables, namely somatic symptoms, neurobehavioral symptoms, and "cognitive" symptoms, subsumed under a single higher-order factor, namely concussion symptoms.<p />  <p>Language: en</p>
LA  - en
SN  - 0195-9131
UR  - http://dx.doi.org/
ID  - ref1
ER  -