Sonja Mensch

39 A systematic review of the literature Table 4. (continued) Instrument Study Study population Psychometrics Methodological quality Diagnoses N Age (Y) COSMIN property Results Rating COSMIN boxes* 1 Rating of results* 2 Top Down Motor Milestone Test (TDMMT) (Putten van der et al., 2005) Multiple disabilities 66 2-16 Structural Validity When three factors were extracted, 83% of the total variance could be explained. Factor 1 explained 71%, factor 2 explained 8% and factor 3 explained 5% of the total variance. Fair + Vulpe Assessment Battery (VAB) (Jain et al., 1994) CP 13 1.11-5.10 Intra-rater reliability ICC = .87, SEM 12.09 Poor + Construct validity Correlation between Peabody-GM and Vulpe-GM r=.97 Poor + Functional Independence Measure for Children (WeeFIM) (Niewczyk & Granger, 2010) Children with im- pairments 147 0-3 Internal consistency Cronbach’s alpha = .95 Good + Structural validity Rasch analyses; For the well-fitting motor items, the infit MNSQ statistics ranged from 0.61 to 1.16 and outfit MNSQ ranged from 0.19 to 1.22 Excellent ? Construct validity The total WeeFIM 0-3 score was significant in predicting impairment status: B=-.79 (SE=.01), Excellent + Findings were significant, indicating 3 components which accounted for 68% of the variance in the model; Excellent +