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Longitudinal links between identity and substance use in adolescence

Who wrote this article? And how was that experience?

I (Lisanne de Moor) wrote my master thesis with dr. Theo Klimstra, whom I had already done some internships with in the past. I really enjoyed doing this project; it really felt like a joint effort, in which dr. Theo Klimstra gave active input and was always available to brainstorm with me about the framing, design, analyses, or meaning of my findings. After finishing the thesis, we adapted the manuscript together with dr. Jelle Sijtsema and dr. Josh Weller into a paper that eventually got published in the "Self and Identity" journal.

Here you can read what the article is about:

Identity development has been linked to substance use, but the directionality of this relationship remains unclear. We examined the longitudinal associations of educational and relational identity with substance use across three annual waves in 360 Dutch adolescents (M age = 13.7 years). We found three latent profiles using the identity dimensions of commitment, exploration, and reconsideration as indicators. Using classification probabilities to determine participants’ clusters at each time point, we distinguished stable, progressive, and regressive identity transition groups. No longitudinal associations were found between identity status transitions and substance use in either direction, but we did find significant cross-sectional correlations. Therefore, our findings do not support a directional process, but hint at a spectrum/continuity or common cause model.

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De Moor, L., Sijtsema, J., Weller, J., & Klimstra, T. (2021). Longitudinal links between identity and substance use in adolescence. Self and Identity.

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