“…A popular self-report measure of TTM is the Student Opinion Scale 1 (SOS; Sundre, 1996, 1997, 1999; Wolf & Smith, 1993; 1995), which has been used in at least 91 published studies and 79 unpublished studies. 2 Two recent meta-analytic reviews found the SOS to be the most commonly used self-report TTM measure (Rios, 2021; Silm, Must, et al, 2020). The SOS has been used to understand correlates of TTM (e.g., DeMars et al, 2013), the relation between TTM and test performance (e.g., Silm, Pedaste et al, 2020), changes in TTM during testing (e.g., Perkins et al, 2021), and to filter unmotivated examinees from the data (e.g., Swerdzewski et al, 2011).…”