The 24-Hour Activity Checklist for Cerebral Palsy: Translation, Content Validity and Test-Retest Reliability of...

Area of Science:

• Pediatrics
• Rehabilitation Medicine
• Movement Science

Background:

• 24-hour movement behaviors (sleep, physical activity, sedentary behavior) are crucial for child development, especially for those with cerebral palsy (CP).
• The existing 24-hour activity checklist for CP needs adaptation for Portuguese-speaking populations in Brazil and Portugal.

Purpose of the Study:

• To translate and culturally adapt the 24-hour activity checklist for CP into Brazilian Portuguese (BP) and European Portuguese (EP).
• To evaluate the content validity and test-retest reliability of the adapted checklists.

Main Methods:

• Cross-sectional methodological study involving forward-backward translation and expert review.
• Content validity assessed using individual item (I-CVI) and scale level (S-CVI/Ave) content validity index scores.
• Test-retest reliability evaluated using Intraclass Correlation Coefficients (ICCs) with 60 parents of children with CP.

Main Results:

• Both BP and EP versions achieved excellent content validity (S-CVI/Ave: 0.91 for BP, 1.0 for EP).
• Expert feedback led to refined questions on sleep, physical activity, and screen time for weekdays and weekends.
• High test-retest reliability was confirmed (ICC ranges: 0.81–0.99 for BP, 0.6–0.98 for EP).

Conclusions:

• The Brazilian Portuguese and European Portuguese versions of the 24-hour activity checklist for CP are valid and reliable.
• This adapted tool can enhance communication and support tailored interventions for healthy movement in children with CP in Brazil and Portugal.