Fig. 2

Overview of study protocol (A, B) and analysis approach (C). Able-bodied participants were tested on the VPIT, PPIT, and VPIT-2H in a test–retest protocol. Participants with Multiple Sclerosis were tested with the VPIT and PPIT at admission and discharge within a 3-week neurorehabilitation program. The analysis focused on a comparison between the three experimental conditions (VPIT, PPIT, VPIT-2H) for the clinimetric properties (primary aim) and to gain a behavioral understanding of the effect of experimental conditions and describe the usability of the assessments (secondary aim). EDSS: Expanded Disability Status Scale. NHPT: Nine Hole Peg Test. BBT: Box and Block Test. CoV: Coefficient of Variation. ICC: Intra-class correlation coefficient. SRD: Smallest Real Difference. SRM: Standardized response mean. # > SRD: Number of individuals with changes larger than the SRD. SUS: System Usability Scale