Continued validation and known groups validity of the Quick-FAAM: Inclusion of participants with chronic ankle instability and ankle sprain copers.

OBJECTIVE

To examine the factor structure and validity of the Quick-FAAM in individuals with chronic ankle instability (CAI) and those classified as ankle sprain copers (ASC).

DESIGN

Cross-sectional.

SETTING

Laboratory.

PARTICIPANTS

Adult participants were included in both groups based on previously established criteria.

MAIN OUTCOME MEASURE(S): The 12-item Quick-FAAM is scored on a 5-point Likert scale were scores are converted to a percentage (0-100%), and greater scores indicate greater function. The Cumberland Ankle Instability Tool (CAIT) is a 9-item scale used to assess impairments in individuals with a history of ankle sprain. Scores range from 0 to 30, and greater scores indicate greater impairment levels. Confirmatory factory analyses, internal consistency, and concurrent validity were determined. Known-groups validity and differences in scores between groups were examined. Alpha was set at p < 0.05.

RESULTS

The instruments were strongly correlated (r = 0.76, p < 0.001), the Quick-FAAM internal consistency remained high (α = 0.94) and the single factor was confirmed. The cutoff score differentiating between the groups was 94.79%.

CONCLUSIONS

The Quick-FAAM is a valid, shortened version of the FAAM. It also has the ability to discriminate between individuals with CAI and those classified as ASC. The Quick-FAAM should be considered for future use with individuals who have ankle sprain history.