https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Development and evaluation of the high-intensity interval training self-efficacy questionnaire https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:39145 N = 389, 16.0 ± 0.4 years, 41.10% female) completed the HIIT-SQ, and factorial validity of the measurement model was explored. Phase 3: Adolescents (N = 100, age 12–14 years, 44% female) completed the HIIT-SQ twice (1 week apart) to evaluate test–retest reliability. Confirmatory factor analysis of the final six items (mean = 3.43–6.73, SD = 0.99–25.30) revealed adequate fit, χ2(21) = 21, p = .01, comparative fit index = .99, Tucker–Lewis index = .99, root mean square of approximation = .07, 90% confidence interval [.04, .11]. Factor loading estimates showed that all items were highly related to the factor (estimates range: 0.81–0.90). Intraclass coefficients and typical error values were .99 (95% confidence interval [.99, 1.00]) and .22, respectively. This study provides preliminary evidence for the validity and reliability of scores derived from the HIIT-SQ in adolescents.]]> Wed 18 May 2022 12:22:41 AEST ]]> School physical activity intervention effect on adolescents' performance in maths https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36330 Wed 01 Apr 2020 12:47:03 AEDT ]]> Mediating effects of sleep on mental health in older adolescents: Findings from the Burn 2 Learn randomized controlled trial. https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:54327 Tue 20 Feb 2024 15:58:32 AEDT ]]> Factors associated with adherence to the muscle-strengthening activity guideline among adolescents https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37695 Tue 14 May 2024 09:47:57 AEST ]]> An internet-supported school physical activity intervention in low socioeconomic status communities: results from the Activity and Motivation in Physical Education (AMPED) cluster randomised controlled trial https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:35711 Fri 19 Aug 2022 12:27:53 AEST ]]>