étude de la reproductibilité et de la validité du T-test modifié

Translated title of the contribution: Reliability and validity of the modified T-test

Z. Gharbi*, W. Dardouri, R. Haj Sassi, A. Rebhi, M. Haj Yahmed

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Objective: To study the reliability and validity of the modified T-test in young soccer players. Synthesis of facts: Eighteen young soccer players with different levels of competition, divided into two groups, (n=9) participated in the study. They performed the modified T-test (TM), Free Counter Movement Jump (FCMJ) and 10. m straight sprint (S10). TM has an excellent reliability with an ICC of 0.93. High significant correlations were observed between the TM and both FCMJ (r=-0.77, P=0.000) and S10 (r = 0.80, P = 0.000). Area under the curve calculated from the Receiver Operating Characteristic (ROC) was 0.926 (95% CI: 0.701 to 0.990) indicating the discriminative power of the TM to distinguish between the two groups' performances. Conclusion: The TM is a reliable and valid field test to evaluate the change direction speed of young soccer players.

Translated title of the contributionReliability and validity of the modified T-test
Original languageFrench
Pages (from-to)e66-e68
JournalScience and Sports
Issue number5
Publication statusPublished - Nov 2012
Externally publishedYes


  • Change of direction
  • Explosiveness
  • ROC
  • Sensitivity

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine


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