Psychometric proprieties of the Test of Gross Motor Development–Third Edition in a large sample of Italian children

Magistro, D ORCID: https://orcid.org/0000-0002-2554-3701, Piumatti, G, Carlevaro, F, Sherar, LB, Esliger, DW, Bardaglio, G, Magno, F, Zecca, M and Musella, G, 2020. Psychometric proprieties of the Test of Gross Motor Development–Third Edition in a large sample of Italian children. Journal of Science and Medicine in Sport. ISSN 1440-2440

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Abstract

Objectives: The Test of Gross Motor Development-3 (TGMD-3) evaluates fundamental gross motor skills across two domains: locomotor and ball skills. This study aimed to perform a full psychometric assessment of this test in a large sample of Italian pre- and primary school children.

Design: Cross-sectional and test-retest study design.

Method: Children (N = 5,210; Mean age (years) = 8.38, SD = 1.97; % females = 48) completed three trials, including one practice a. Only the scores of the two latter ‘formal’ trials were recorded for the evaluation. Factorial validity and measurement invariance of TGMD-3 across age and gender groups and test-retest reliability for the overtime measure consistency were tested. Item response theory analysis further tested single items’ performances.

Results: Explorative and confirmatory factor analyses confirmed the two-factor structure of the TGMD-3. Multi-group confirmatory factor analyses indicated that there were no significant reductions in model adjustments between the configural, metric and structural invariance solutions for gender and age groups. Test-retest results ranged between 0.967 and 0.990 for both skill sets across age groups. Item response theory analysis using a graded response model showed low standard error and high-test information levels covering a wide spectrum range of both locomotor and ball skills.

Conclusions: These results highlight the strong construct validity and reliability of the TGMD-3 to measure gross motor skills in children across gender and age groups. Item response theory analysis evidenced how the performance criteria included in this test cover a wide range of gross the motor skills spectrum. The use of TGMD-3 may inform motor development programs and support curricular decisions in schools.

Item Type:	Journal article
Publication Title:	Journal of Science and Medicine in Sport
Creators:	Magistro, D., Piumatti, G., Carlevaro, F., Sherar, L.B., Esliger, D.W., Bardaglio, G., Magno, F., Zecca, M. and Musella, G.
Publisher:	Elsevier
Date:	28 February 2020
ISSN:	1440-2440
Identifiers:	Number Type 10.1016/j.jsams.2020.02.014 DOI S1440244018303773 Publisher Item Identifier 1300142 Other
Divisions:	Schools > School of Science and Technology
Record created by:	Linda Sullivan
Date Added:	02 Mar 2020 11:01
Last Modified:	31 May 2021 15:06
URI:	https://irep.ntu.ac.uk/id/eprint/39344

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