“…A range of other measures will also be included to describe the sample and explore the relationships between these measures and the primary outcomes: - Demographics (age, gender, sex at birth, country of birth, grades at school, truancy, and a proxy for family socio-economic status used in the HBSC study, which includes items such as the number of cars and computers in the family home ( Currie et al, 1997 );
- Age of first alcohol consumption, maximum number of standard drinks consumed on one occasion and perceived proportion of students’ friends who drink alcohol (adapted from the School Health and Alcohol Harm Reduction Project ‘Patterns of Alcohol’ index ( McBride et al, 2004 );
- Other drug use (ecstasy, methamphetamine);
- Social contact and support (Items used from the National Survey on Mental Health ( Slade et al, 2007 );
- Interpersonal emotion regulation (a shortened version of the Interpersonal Regulation Questionnaire ( Williams et al, 2018 );
- Emotional neglect (adapted from the CDC-Kaiser Permanente Adverse Childhood Experiences Study ( Felitti et al, 1998 );
- Relationship with a parent/guardian (The Parental Bonding Instrument ( Parker et al, 1979 );
- Climate change anxiety (adapted from the Anticipatory Traumatic Reaction feelings subscale ( Hopwood et al, 2017 );
- Covid-19 exposure and impact (sourced from the Australian National Covid-19 mental health, behaviour and risk communication survey ( Australian National University, 2020 ), and the Distress Questionnaire-5 ( Batterham et al, 2016 ).
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