Table 2: Summary of method and results for mental toughness and competitive standard studies (N = 11).

Author (year) MT instrument(s) MT instrument and use Competitive standards Data analyses Result(s)
Crust
(2009)
MTQ48 Total MT and subscales (i.e., Challenge, Commitment, Interpersonal confidence, Confidence abilities, Emotional control, Life control) • Club to national (n = 63)
• Recreational (n = 49)
Independent samples t-test for total MT and subscales (Bonferroni adjusted applied to p-values for multiple comparisons) • No differences found between the group on total MT and the subscales (p < .05)
Gucciardi et al.
(2009)
AfMTI MT subscales (i.e., Thrive through challenge, Sport awareness, Desire success, Tough attitude) • Elite (n = 118)
• Sub-elite (n = 167)
• Amateur (n = 138)
ANOVAs for each subscales, followed by post-hoc comparisons • Except for tough attitude (p > .05), ↑ scores for elite (p < .017) compared to sub-elite group
• ↑ scores on all subscales for elite (p < .001 to .017) compared to amateur group
• No differences between amateur and sub-elite groups
Nicholls et al.
(2009)
MTQ48 Total MT and subscales (i.e., Challenge, Commitment, Interpersonal confidence, Confidence abilities, Emotional control, Life control) • International (n = 60)
• National (n = 99)
• County (n = 198)
• Club/university (n = 289)
• Beginner (n = 31)
ANOVA for total MT, and, due to sex differences in subscale MT, a competitive standard by sex MANOVA for the MT subscales • No differences in total MT (p > .05)
• No main effect for competitive standard (p = .25) or competitive standard by sex interaction effect (p = .06)
Sheard et al.
(2009)
SMTQ Total MT and subscales (i.e., Confidence, Constancy, Control) • International (n = 79)
• National (n = 150)
• County/provincial (n = 479)
• Club/regional (n = 434)
ANOVA for total MT, with post hoc comparisons. MANOVA for MT subscales, with post-hoc comparisons (Dunn-Sidak method used) • ↑ total MT among international and national compared to county/provincial and club/regional athletes (p < .05)
• ↑ confidence and constancy among international and national compared to county/provincial and club/regional athletes (p < .001)
• ↑ confidence and constancy among county/provincial compared to club/regional athletes (p < .001)
Crust & Azadi
(2010)
MTQ48 Total MT • National/county (n = 71)
• Club/university (n = 36)
Independent samples t-test • ↑ total MT among national/county group (p = .03)
Weissensteiner et al. (2012) Mental toughness Inventory Total MT and subscales (i.e., Task Focus, Task Familiarity, Perseverance, Positivity, Positive Comparison, Stress Minimization, Self-efficacy, Potential, Mental Self-concept, Personal bests, Task value, Goal commitment) • National/regional (n = 11)
• Club (n = 10)
ANOVA for total MT and follow-up ANOVAs for each subscale • ↑ total MT among national/regional group (p < .05)
• ↑ self-belief, personal bests, task value, perseverance, and goal commitment among national/regional group (p < .05)
Chen & Cheesman (2013) PPI-A and SMTQ Total SMTQ and subscales (i.e., Confidence, Constancy, Control)
Total PPI-A and subscales (i.e., Determination, Self-belief, Positive cognition, Visualization)
• Professional (n = 49)
• Semi-professional (n =39)
• Amateur (n = 48)
MANOVA for total SMTQ and PPI-A scores, followed by ANOVAs for each. MANOVA with all 7 subscales, followed by ANOVAs (Bonferroni adjustments applied to follow-up analyses) • ↑ total MT scores on the SMTQ (p < .01) and PPI-A (p < .005) among professional group compared to semi-professional and amateur group
• ↑ determination (p = .007), positive cognition (p < .001), and confidence (p < .001) among professional group compared to semi-professional and amateur groups
Meggs et al.
(2014)
SMTQ Total MT and subscales (i.e., Confidence, Constancy, Control) (a) Grouping 1:
• International and national (n = 27)
• Regional and school/recreational (n = 78)
(b) Grouping 2:
• International and national (n = 27)
• Regional (n = 29)
• School/recreational (n = 49)
(a) Independent samples t-tests
(b) Independent samples t-tests
(a)
• ↑ total MT among international and national athletes (p < .02).
• ↑ confidence among international and national athletes (p < .001)
(b)
• ↑ control among international and national compared to school/recreational athletes (p < .05)
Wieser & Thiel
(2014)
Modified SMTQ (inclusion of duplicate item to assess consistency) and PPI-A Average total MT % (i.e., Modified total SMTQ% + total PPI-A%) / 2 • International (n = 8)
• Non-international (n = 12)
Independent samples t-test • ↑ average total MT % among international soccer players (p < .04)
Cowden & Meyer-Weitz (2015) SMTQ Total MT and subscales (i.e., Confidence, Constancy, Control) • International (n = 35)
• National (n = 83)
• University team/league (n = 160)
• Local county (n = 24)
• County club (n = 63)
ANOVA for total MT and MANOVA for MT subscales (Bonferroni adjustments applied to follow-up analyses) • No differences in total MT (p = .094) and each of the subscales (p = .274)

Note. N = number of studies, n = number of participants, MT = mental toughness, MTQ48 = Mental Toughness Questionnaire 48, AfMTI = Australian football Mental Toughness Inventory, SMTQ = Sports Mental Toughness Questionnaire, PPI-A = Psychological Performance Inventory – Abbreviated, ANOVA = Analysis of Variance, MANOVA = Multivariate Analysis of Variance, ↑ = higher/greater.