Sonja Mensch

38 Chapter 2 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 Motor function measure scale (MFM) (Berard et al., 2005) Neuro- muscular diseases 50 2-62 Construct validity Spearman rank correlation coefficients MFM-total score –VAS physician/VAS physiotherapist/ Vignos grade/ Brooke grade/ FIM (.88/ .91/ .91/ .85/ .91) Excellent + Mean scores significantly decreased with degree of motor disability as evaluated by the Clinical Global Impression of physicians (Anova F3.299= 293.2, P< .0001—all means significantly different in pairwise comparisons). Excellent ? The total score and sub-scores allowed a good discrimination between diagnosis groups (Anova F7.295= 29.1, P< .0001) Excellent ? Top Down Motor Milestone Test (TDMMT) (Putten van der et al., 2005) Multiple disabilities 3 6, 11, 13 Internal consistency Cronbach’s alpha of the categories was .95. The item-rest correlations varied between .54 (category M) and .90 (category G), with the mean .80. Poor + 3 6-13 Inter-rater reliability Cohen Kappa= .97 (.58, 1.00) Poor + Intra-rater reliability Cohen Kappa= .95 (.54-.90) Poor +