Mental Toughness Inventory (MTI, Middleton et al.)
Psychology: PersonalityReliability: alpha 0.913 sample items
About this scale
A 67-item measure of mental toughness in sport across 12 facets including self-efficacy, persistence, focus, and resilience under pressure.
Sample item(s)
“I believe in myself when the pressure is on”
“I bounce back from disappointment quickly”
“I focus completely on the task at hand”
Reliability
Reported internal consistency: alpha 0.91. As a rule of thumb, Cronbach’s α ≥ .70 is considered acceptable, ≥ .80 good, and ≥ .90 excellent for established measures.
Notes
Free for academic use; MTI-48 short form widely used.
Source & citation
Middleton, S. C., Marsh, H. W., Martin, A. J., Richards, G. E., & Perry, C. (2004): Discovering mental toughness: A qualitative study of mental toughness in elite athletes. Psych Test Assessment Modeling.
Source. Scale details are summarised from the publication cited above. Always consult the original source for the full item set, scoring, and permission to use.
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