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Reliability and validity of the Timed Floor To Stand Test-Natural in school-aged children
Goldie Weingarten1, Sandra Kaplan
1Physical Therapy Department (Ms Weingarten), New York City Department of Education, New York, New York; Physical Therapy Department (Dr Kaplan), School of Health Related Professions, Rutgers, The State University of New Jersey, Newark, New Jersey.
Summary
The Timed Floor to Stand-Natural (TFTS-N) test shows high reliability for assessing schoolchildren with typical development (TD). This makes it a dependable tool for physical therapists to measure functional abilities in school settings.
Area of Science:
- Pediatric Physical Therapy
- Motor Development Assessment
- Functional Performance Testing
Background:
- The Timed Floor to Stand-Natural (TFTS-N) test is a functional measure.
- Reliability data is needed for its use in children with typical development (TD).
- Standardized procedures are essential for consistent data collection.
Purpose of the Study:
- To determine the reliability of the TFTS-N as a standalone assessment.
- To prepare for normative data collection in schoolchildren with TD.
- To validate a "natural" pace version of the TFTS.
Main Methods:
- Five school-based physical therapists standardized TFTS-N procedures.
- A repeated-measures design was used to collect time data.
- Intraclass correlation coefficients (ICCs) were calculated for reliability.
Main Results:
- Twenty-two TD students (ages 8-12) completed the TFTS-N.
- Intrarater reliability (ICC (3,1)) ranged from 0.713 to 0.800.
- Interrater reliability was 0.988 and test-retest reliability (ICC (3,3)) was 0.871.
Conclusions:
- The TFTS-N demonstrates high intra-, inter-, and test-retest reliability.
- The test possesses face validity, reflecting common school activities.
- Reliable TFTS-N procedures enable physical therapists to establish baseline measures for TD schoolchildren.
