Paired-sample T-Values* (Cohen’s d effect size)

Chronicity Group

Abilities

Index

Adjustment

Index

Participation

Index

EarlyImpact (n = 245)

Effect size

21.1

(1.14)

15.25

(1.43)

19.48

(1.25)

Mid Impact (n = 129)

Effect size

11.30

(1.68)

8.32

(2.02)

10.51

(1.46)

Late Impact (n = 106)

Effect size

8.54

(1.53)

7.47

(1.99)

9.1

(1.57)