. Author manuscript; available in PMC: 2016 Sep 1.

Published in final edited form as: J Trauma Acute Care Surg. 2015 Sep;79(3 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3):S21–S28. doi: 10.1097/TA.0000000000000675

Table 3.

Adjusted repeated measure models using linear mixed model analysis for all questions, knowledge-based questions, and behavioral-based questions

	All Questions		Knowledge-based Questions		Behavioral-based Questions
Variable	F-value	p-value	F-value	p-value	F-value	p-value
Group	2.09	.05	1.32	.25	1.13	.29
Time of survey	4.05	<.0001	6.31	.01	.27	.61
Age	.14	.71	6.79	.0094	11.35	.0008
Gender	7.84	.005	.79	.38	9.75	.002
Sport	3.35	.02	4.29	.005	3.19	.02
History of concussion education	.00	.97	3.18	.08	2.74	.10
Time of survey by Group	34.55	<.0001	5.92	.02	32.25	<.0001

Group = education or control school; Time of survey = postseason or preseason; Gender = females or males; Sport = basketball, football, soccer or wrestling; Time of survey by Group = interaction term of time of survey by group. Type 3 solution for fixed effects is reported.