Effectiveness of a Handwriting Intervention

The Size Matters Handwriting Program (Moskowitz, 2009) (SMHP) program incorporates principles grounded in motor learning theory, cognitive theory, and motivation theory. Children learn the importance of letter size by learning size 1 (capital and tall letters), size 2 (small letters) and size 3 letters (those that dive below the baseline) at different stages (Moskowitz, 2009). The intervention group received a total of 30 sessions of the SMHP, completed twice weekly over a 16 week period. Sessions lasted 30 minutes, and were led by an occupational therapist with training in the Size Matters Handwriting Program. All interventions were provided within the existing support classrooms. Each child had their own SMHP workbook.