Table 7.

Mean VFS summed scores and SEs at Time 1 and Time 2 for the Phase 4 respondents who completed the retest measure.

Summed Scores	N	Time 1	Time 2	Wilcoxon Z	Spearman's Rho	ICC
VFS-PMental	139	12.4 (0.65)	12.6 (0.60)	−1.06 (.291)	.90 (< 0.001)	.90 [.87, .93]
VFS-PPhysical	139	11.5 (0.42)	10.7 (0.41)	−2.56 (.011)	.84 (< 0.001)	.84 [.78, .88]
VFS-C	43	17.1 (1.47)	16.3 (1.60)	−.985 (.325)	.79 (< 0.001)	.84 [.72, .91]
VFS-T	73	19.0 (0.76)	18.9 (0.68)	−.458 (.647)	.69 (< 0.001)	.72 [.58, .81]

Note. Wilcoxon Z and the resultant p values in parentheses are shown in the fifth column. Spearman's correlation (r _s) and ICC values for comparisons of scores at T1 and T2 are shown in the sixth and final columns, respectively. ICC 95% confidence intervals are shown in brackets. Bolded values are significant. VFS = Vanderbilt Fatigue Scale; SEs = standard errors; N = number of participants in the sample; ICC = intraclass correlation coefficient; VFS-P = VFS parent proxy–report scale; VFS-C = VFS child self-report scale; VFS-T = VFS teacher proxy–report scale.