A systematic review of active transportation research in Africa and the psychometric properties of measurement tools for children and youth

Table 1 Modified Downs and Black checklist

Question in the modified checklist	Question in the original checklist [reference[30]]	Rating
*Reporting*
Q1. Objective Clearly Stated	Question 1	(Yes = 1/No = 0)
Q2. Main Outcomes Clearly Described	Question 2	(Yes = 1/No = 0)
Q3. Patient Characteristics Clearly Defined	Question 3	(Yes = 1/No = 0)
Q4. Main Findings Clearly Defined	Question 6	(Yes = 1/No = 0)
Q5. Random Variability in Estimates Provided	Question 7	(Yes = 1/No = 0)†
Q6. Actual Probability Values Reported	Question 10	(Yes = 1/No = 0)*†
*External Validity*
Q7. Sample Targeted Representative of Population	Question 11	(Yes = 1/No = 0)
Q8. Sample Recruited Representative of Population	Question 12	(Yes = 1/No = 0)
*Internal Validity/Bias*
Q9. Statistical Tests Used Appropriately	Question 18	(Yes = 1/No = 0)†
Q10. Primary Outcomes Valid/Reliable	Question 20	(Yes = 1/No = 0)

*This item was considered non-applicable for studies whose objectives were strictly descriptive. In addition, when actual p values were not reported for the outcome of interest, the score of 0 was given even though some actual p values were reported for other outcomes. †denotes that these questions were considered non-applicable for studies where no statistical tests were reported [33]-[36].

ISSN: 1479-5868