79 The feasibility of daily monitoring 4 contacted by a researcher to be briefed about study procedures. When consenting to participate, an informed consent form was signed by participant and—if underage or under legal guardianship—additionally by a parent or legal guardian. Each participant's case record was checked to verify whether a participant had a mild intellectual disability or borderline intellectual functioning diagnosis. Five adolescents that were subscribed, were excluded before diary sampling started, because neither of these diagnoses could not be confirmed from the case records. This resulted in a final sample size of 50 adolescents and young adults. The case files of 44 of those 50 participants (88%) contained information about IQ obtained through a Wechsler Intelligence Scale (Wechsler, 2003, 2008, 2014). Of the six participants whose IQ scores could not be retrieved from records, a DSM-5 based mild intellectual disability or borderline intellectual functioning diagnosis was present, which warranted inclusion. Moreover, their clinicians confirmed these participants belonged to the target group. 2.3 Procedures Data collection commenced between October 2020 and March 2022. Participants could contact the researcher if they wished to drop out (i.e., terminate their daily diary prompts). If the researcher noticed that not a single diary was completed for two consecutive weeks, the participant was contacted and asked whether he/ she wished to terminate the diary prompts. When a participant did not want to terminate, the researcher asked after the reason for missing the diaries. When the reason did not reflect a lack of legitimate intrinsic motivation (e.g., I was hospitalized after an accident) it was reason to stay in the study, while simply forgetting with a wish to continue for the financial reward was not. Structured follow-up interviews were conducted with all participants, including dropouts. Only one participant was not available for a follow-up interview. As an incentivizing reward, every participant had the prospect of receiving a gift card (after the interview following the 60-day diary period), which, depending on how many diary surveys they completed, was worth maximally €75. 2.4 Daily diaries Because of Covid-19 restrictions, an intake meeting was planned via video call. During this intake, the researcher helped the participant install the mobile phone application Ethica (Ethica, 2023), which was used for daily diary sampling. In Ethica, it is possible to customize the assessment schedule and survey content per individual. Hence, the daily prompts were scheduled at an evening time that was convenient for the participant. The most chosen evening time was 8:00 PM (24%). Regardless of the chosen prompt time, surveys expired at 8:00AM. This was
RkJQdWJsaXNoZXIy MTk4NDMw