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Content validity of the In-Hand Manipulation Test

C E Exner1

  • 1Towson State University, Maryland 21204-7097.

The American Journal of Occupational Therapy : Official Publication of the American Occupational Therapy Association
|June 1, 1993
PubMed
Summary

The In-Hand Manipulation Test (IMT) shows promise for assessing children's object manipulation skills in occupational therapy. Content validity was supported by therapists, indicating the IMT is a valuable tool for evaluating fine motor skills.

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Area of Science:

  • Occupational therapy
  • Pediatric assessment
  • Motor skill development

Background:

  • Object manipulation skills are crucial for occupational therapy client assessments.
  • Standardized tests for children's hand function often lack specific in-hand manipulation skill assessments.
  • The In-Hand Manipulation Test (IMT) was developed to address this gap for preschool and young school-age children.

Purpose of the Study:

  • To assess the content validity of the In-Hand Manipulation Test (IMT).
  • To gather feedback from occupational therapists on the IMT's structure, activities, and administration.
  • To inform further development and refinement of the IMT.

Main Methods:

  • Twenty-four certified occupational therapists evaluated children's performance on the IMT.
  • Therapists completed a content validity survey regarding the test.
  • Feedback was collected on test length, administration time, rating scale, and activity presentation.

Main Results:

  • Content validity of the IMT was supported by therapist feedback.
  • An acceptable test length of 50 items with two trials per item was suggested, aiming for 20-30 minute administration.
  • Therapists responded positively to the IMT's content and structure, though some functional validity aspects were noted for future revision.

Conclusions:

  • The IMT demonstrates supported content validity for assessing in-hand manipulation skills in children.
  • Further development, including revisions and another pilot study, is warranted before normative data collection.
  • Training materials will incorporate study recommendations to enhance IMT administration and scoring.

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