title: Writing Readiness Inventory Tool in Context (WRITIC): reliability and convergent validity.
abstract: OBJECTIVE
  This study examined the reliability and convergent validity of the Writing Readiness Inventory Tool in Context, a measurement evaluating writing readiness in kindergarten children (aged from five to six years).
  
  
  METHODS
  Test-retest reliability was established with 59 children, inter-rater reliability with 72 children and convergent validity with 119 children. All participants were typically developing kindergarten children. Convergent validity was examined with the Beery-Buktenica Developmental Test of Visual-Motor Integration and the Nine-Hole Peg Test.
  
  
  RESULTS
  We found excellent test-retest and inter-rater reliability on the future norm-referenced subdomain 'Task performance' of Writing Readiness Inventory Tool in Context with intra-class correlation coefficient ranging from 0.92 to 0.95. On the other criterion-referenced subdomains, we found fair to good reliability with intra-class correlation coefficient ranging from 0.70 to 1.0 and weighted Kappa ranging from 0.30 to 0.89. Correlations with the Beery-Buktenica Developmental Test of Visual-Motor Integration and the Nine-Hole Peg Test were moderate with rs ranging from 0.34 to 0.40 and these are comparable with correlations in other handwriting studies.
  
  
  CONCLUSIONS
  Writing Readiness Inventory Tool in Context is an assessment of writing readiness that is stable over time and between raters. The expected moderate correlations with the Beery-Buktenica Developmental Test of Visual-Motor Integration and the Nine-Hole Peg Test support the construct of writing readiness.
authors.affiliation: Department of Rehabilitation 898, Nijmegen Centre for Evidence Based Practice, Radboud University Nijmegen Medical Centre, Nijmegen; Institute of Health, Amsterdam University of Applied Sciences, Amsterdam.
authors.forename: Margo J
authors.initials: MJ
authors.lastname: van Hartingsveldt
authors.forename: Edith H C
authors.initials: EH
authors.lastname: Cup
authors.forename: Imelda J M
authors.initials: IJ
authors.lastname: de Groot
authors.forename: Maria W G
authors.initials: MW
authors.lastname: Nijhuis-van der Sanden
mesh_terms: D002657:Child Development; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D009048:Motor Skills; D011597:Psychomotor Performance; D012016:Reference Values; D015203:Reproducibility of Results; D013647:Task Performance and Analysis; D014796:Visual Perception; D014956:Writing
keywords: child; handwriting; outcome assessment; reliability and validity; school-based services