METHODS: Published literature was systematically searched according to PRISMA guidelines using specific key terms. Initial search identified 785 studies; however only seven met the inclusion criteria and were assessed for final review. Studies were methodologically appraised using the McMaster Critical Review Form-Quantitative Studies.
RESULTS: The review found no randomised control trial study design pertaining to the reviewed area. However, it can be seen that occupational therapy interventions for writing skills in 4-6 year old children managed to increase the targeted skills. The results were similar across samples with or without disabilities. An effective integration of occupational therapy interventions into educational curriculum was found to save both time and cost.
CONCLUSION: The long-term benefit from these interventions and the effects of these interventions on a broader spectrum of fine motor abilities need to be explored further with stronger research designs. However, the lack of studies adopting high level study designs, i.e., RCT designs means, results need to be approached with caution by occupational therapists when implementing handwriting skills intervention in practice.
METHODS: This study involved: (1) four English teachers (translators) for forward and backward translation procedures; (2) 10 experts in the field of occupational therapy (expert reviewers) for content validity testing; and (3) 60 undergraduate students (participants) for test-retest reliability testing.
RESULTS: PPT-M had excellent content validity with Item-Content Validity Index = 0.9-1.0, Scale-Content Validity Index/Average = 0.93-0.95, and a slightly lower Scale-Content Validity Index/Universal Agreement = 0.25-0.75. Test-retest reliability for 3-trial administration (n = 30; Intraclass Correlation Coefficients, ICCs = 0.76-0.85; good) was higher compared to 1-trial administration (n = 30; ICCs = 0.34-0.46; poor) for all subtests. Both trial administrations were mostly affected by systematic errors, especially practice effect as the retests gave higher scores. Random errors mostly affected Subtest 3 of 1-trial administration, evident by its Minimal Detectable Change Percent values = 30.84% that fell beyond the acceptable range.
CONCLUSION: PPT-M has the potential to be a valuable instrument for measuring hand dexterity among Malay speaking individuals especially when the 3-trial administration is used.