“…While qualitative research helped to identify some of the key attributes of mentally tough athletes, much less attention was given to issues of measurement (Crust, 2008;Sheard, Golby, & van Wersch, 2009). However, Clough et al (2002) produced an instrument that has since been used in numerous studies (i.e., Crust & Clough, 2005;Kaiseler, Polman, & Nicholls;Nicholls, Polman, Levy & Backhouse, 2008). Despite much published research using the Mental Toughness Questionnaire 48 (MTQ48; Clough et al), some researchers (i.e., Sheard et al, 2009) have been critical of the measure on two counts: First, the conceptualization that underpins the MTQ48; and second, the lack of independent scrutiny of the factor structure.…”