手法を比較

	Sport Confidence Inventory (SCI)	メンタルタフネス質問票（MTQ48）
分野	スポーツ心理学	スポーツ心理学
系統	Process / pipeline	Process / pipeline
提唱年	1986	2002
提唱者	Robin Vealey	Peter Clough, Keith Earle, David Sewell
種類	Self-report sport-specific confidence trait questionnaire	Self-report mental toughness and resilience questionnaire
原典	Vealey, R. S. (1986). Conceptualization of sport-confidence and competitive orientation: Preliminary investigation and instrument development. Journal of Sport Psychology, 8(3), 221–246.	Clough, P. J., Earle, K., & Sewell, D. (2002). Mental toughness: A definition and measured construct. Journal of Applied Sport Psychology, 14(3), 169–187.
別名	SCI, Trait Sport Confidence	MTQ48, Mental Toughness, 4Cs
関連	4	4
概要	The SCI is a 13-item questionnaire measuring general, trait-level confidence in sport ability—the athlete's habitual belief in their capability to execute skills and perform well in their sport. Developed by Vealey in 1986, the SCI is one of the most widely used instruments for assessing athlete self-confidence and predicting competitive success and psychological wellbeing.	The MTQ48 is a 48-item instrument measuring mental toughness—the capacity to perform well under pressure, persist through adversity, maintain emotional control, and sustain commitment toward goals. Developed by Clough, Earle, and Sewell in 2002, the MTQ48 operationalizes mental toughness across four dimensions (the '4Cs': Control, Commitment, Challenge, and Confidence) and has become widely adopted in sport psychology, talent development, and organizational psychology for identifying and developing psychological resilience.