. Author manuscript; available in PMC: 2022 Sep 1.

Published in final edited form as: Clin J Sport Med. 2021 Sep 1;31(5):e221–e228. doi: 10.1097/JSM.0000000000000943

Table 5:

Internal consistency, test-retest reliability, and inter-rater agreement

Assessment	Scale	Rater	Cronbach’s alpha	Test- retest ICC	Inter-rater ICC	Parent-child mean difference
Post-Acute	Cognitive	Parent Child	.940	Retro/PA .764	.313	−0.544
	Cognitive	Parent Child	.918	-	.313	−0.544
	Somatic	Parent Child	.757	Retro/PA .619	.280	−2.02^*
	Somatic	Parent Child	.849	-	.280	−2.02^*
1 Month	Cognitive	Parent Child	.919	PA/1M .664	.690	0.248
	Cognitive	Parent Child	.924	PA/1M .667	.690	0.248
	Somatic	Parent Child	.805	PA/1M .511	.471	−1.679^*
	Somatic	Parent Child	.861	PA/1M .682	.471	−1.679^*
3 Month	Cognitive	Parent Child	.943	1M/3M .760	.469	−0.054
	Cognitive	Parent Child	.924	1M/3M .744	.469	−0.054
	Somatic	Parent Child	.859	1M/3M .585	.305	−1.781^*
	Somatic	Parent Child	.851	1M/3M .649	.305	−1.781^*

NOTE: Retro = retrospective pre-injury; PA = post-acute; 1M = 1 month; 3M = 3 month

Mean difference significant, p < .05