It would also have been desirable to have patient reported measures, e.g. on their attitude to treatment in general and to medication in particular, as a central outcome.
Pearson's correlation coefficients (r) were computed to examine relationships between cognitive performance and self-report measures on one hand and the biomarkers on the other.
Future research could focus on data triangulation to complement the self-report measures on the one hand, and gathering multiple measurements (e.g. tutorial observations) throughout the PBL process on the other hand.
Participants also completed a battery of self-report measures on unusual experiences, hallucination-proneness, substance use and coping mechanisms.
Individual-level socio-economic status (SES) was assessed using self-report measures on educational attainment, household income, and household size.
Outcome measures included daily sleep diaries, self-report measures on insomnia severity, dysfunctional beliefs and attitudes about sleep, daytime sleepiness, as well as medication usage.
146 (52.7% female) community-dwelling adolescents aged 16.2 ± 1.0 years (M±SD) completed self-report measures on depression, anxiety, and everyday hassles at four time points: during a school vacation, and the start, middle, and end of school-terms.
Participants and companions completed self-report measures on knowledge of genetics and attitudes toward genetic testing for PTSD.
Our findings provide novel information on the influence of characteristics of self-report measures on the validity of adherence estimates.
At each wave, participants complete self-report measures on health, lifestyle, psychological and social wellbeing and personality characteristics.
