The data were collected using multiple data collection methods from May 2010 until February 2012.
The data were collected using a standardised data collection form and included the first author's name, publication year, country, database, study design, sample size, age at baseline, follow-up duration, dose, duration, effect estimates and 95% CIs, and covariates in the fully adjusted model.
The data were collected using an Excel-based data collection file.
The data were collected using a semi-structured interview schedule.
The data were collected using a usability testing form.
The data were collected using two questionnaires: (1) Teen Sleep Diary (TSD) and (2) the Pediatric Daytime Sleepiness Scale (PDSS).
The data were collected using the Technology Attitude Scale (Cronbach Alpha = 0.87), Academic Achievement Rubric and Student Opinion Form.
The data were collected using an intensified high-speed camera and a single/multi-fiber Cassegrain optics system coupled to an ICCD spectrometer.
The data were collected using a direct method [63], by means of semi structured interviews, since the focus is to perform qualitative and quantitative analyzes.
The data were collected using a demographic information form, Apache IV form, Beck oral assessment scale, mucosal-plaque assessment scale, and oropharyngeal swab culture.
The data were collected using standardized so-called school, home, and curriculum questionnaires for students, parents, teachers, and principals (Martin and Mullis 2012).
