Construct validity, reliability, and responsiveness of the Wrist Position Sense Test for use in children with hemiplegic cerebral palsy

Introduction We investigate the construct validity, test re‐test reliability, and responsiveness of the Wrist Position Sense Test (WPST) for children with hemiplegic cerebral palsy (CP). Methods Twenty‐eight children with spastic hemiplegic CP [mean age 10.8 years; SD 2.4 years] and 39 typically developing (TD) children [mean age 11 years; SD 2.9 years] participated in a cross‐sectional study to investigate construct validity and association with an upper limb activity measure, the Box and Block Test (BBT). Twenty‐two TD children were tested at a second time‐point to examine reliability. Test responsiveness was determined by random allocation of 17 children with CP to a treatment (n = 10) or control (n = 7) group with assessments completed at four time‐points. Results Significantly greater differences were observed in mean error of indicated wrist position (p