This study examined the test-retest reliability, inter-rater reliability, convergent validity and discriminant validity of the Fine Motor Scale of the Peabody Developmental Motor Scales-second edition (PDMS-FM-2). Participants included two groups of 18 children between the ages of 4 and 5 years with and without mild fine motor problems. The PDMS-FM-2 was administered twice to 12 children and rated by two occupational therapists. The PDMS-FM-2 results were compared with scores on the Movement Assessment Battery for Children (M-ABC). In addition, the scores of the children with and without fine motor problems were compared. For the test-retest reliability and the inter-rater reliability, correlation coefficients varied from r = 0.84 to r = 0.99. These results suggest that PDMS-FM-2 has excellent test-retest and inter-rater reliability. Convergent validity with the fine motor section of the M-ABC and discriminant validity have been confirmed. Only 39% of the children in the group with problems in fine motor activities had fine motor problems according to the PDMS-FM-2. This finding seems to indicate that the PDMS-FM-2 may not be sensitive enough for this population.
Aim To establish if there are psychometrically sound standardized tests or test items to assess handwriting readiness in 5‐ and 6‐year‐old children on the levels of occupations activities/tasks and performance.
Method Electronic databases were searched to identify measurement instruments. Tests were included in a systematic review if: (1) participants are 5 and 6 years old, (2) the focus was on handwriting readiness, and (3) the measurement was standardized. In the second step a further electronic search was undertaken for selected relevant measurement instruments to evaluate the content, psychometric properties, and feasibility of these instruments.
Results The search identified 1113 citations. In the final selection 39 articles with information about 12 tests were included. The content, feasibility, and psychometric properties of these 12 tests were evaluated and none of the instruments was satisfactory, according to the specific criteria.
Interpretation None of the instruments include all necessary components to evaluate writing readiness. Therefore, the development of an all encompassing assessment is necessary to test handwriting readiness and to make tailored interventions possible.
This article describes the development of the Writing Readiness Inventory Tool in Context (WRITIC), a measurement evaluating writing readiness in Dutch kindergarten children (5 and 6 years old). Content validity was established through 10 expert evaluations in three rounds. Construct validity was established with 251 children following regular education. To identify scale constructs, factor analysis was performed. Discriminative validity was established by examining contrast groups with good (n = 142) and poor (n = 109) performers in paper-and-pencil tasks. Content validity was high with 94.4% agreement among the experts. Two reliable factors were found in the performance of paper-and-pencil tasks with Cronbach's alphas of 0.82 and 0.69 respectively. The contrast groups differed significantly in two WRITIC subdomains: "Sustained attention" and "Task performance". Our findings indicated that the WRITIC is feasible for use in the classroom.
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