Mental Toughness Measurement for Psychological Skills Training Intervention: Translation and Adaptation

The purpose of this study was to assess the validity and reliability of mental toughness measurement among netball youth athletes on shooting skill performance who underwent for Psychological Skills Training intervention. Cultural adaptation of the English version of the Psychological Performance Inventory was performed, and a Malay version was developed following standard forward-backward translation by independent native speaker. Psychometric properties of both versions were determined by assessing the internal consistency and test-retest reliability. The instrument's validity and reliability were analyzed in two phases: Phase 1 involved the translation of the questionnaire to Malay, establishing content validity and pilot study; and Phase 2 involved psychometric assessment. As for individual scales, this study's values were slightly higher from.66 -.84, compares those found in the original version of.42 -.82. Subscale–total score correlations for pre-intervention ranged.65 -.85 and for post intervention ranged.67 - .79. The test-retest analysis showed reliability with correlation coefficient of.82, thus indicating that the score is better and the stability of the measure across time are ensured. The PPI of Malay version are reliable and valid instruments for assessing mental toughness on the target population.