2020
DOI: 10.1111/jcpp.13274
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Editorial: Some roads less travelled—different routes to understanding the causes of child psychopathology

Abstract: The most critical issue in our field is to understand the causes of the disorders we study. What genetic and environmental risk factors result in some children developing autism, and others depression? I discussed the issue of causation in an earlier editorial (Lervåg, 2019) and anticipated that ‘we will see many more studies in the Journal of Child Psychology and Psychiatry (JCPP) testing causal relationships’. My prediction is nicely borne out by studies in the current issue of the journal.

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Cited by 6 publications
(6 citation statements)
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“…First, it provides a better representation of the real‐life processes, as we expect them to occur within individuals, and it aligns with theoretical work, suggesting that victimization may be related to (perceived) physical health by shaping adolescents' biological stress systems (Prinstein & Giletta, 2020; Schacter, 2021). Second, within‐person effects are not biased by time‐invariant unobserved confounders (e.g., personality traits; Lervåg, 2020). Therefore, these within‐person effects are more suitable to base intervention strategies upon as they provide more direct evidence that peer victimization and perceived physical health associate with one another.…”
Section: Discussionmentioning
confidence: 99%
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“…First, it provides a better representation of the real‐life processes, as we expect them to occur within individuals, and it aligns with theoretical work, suggesting that victimization may be related to (perceived) physical health by shaping adolescents' biological stress systems (Prinstein & Giletta, 2020; Schacter, 2021). Second, within‐person effects are not biased by time‐invariant unobserved confounders (e.g., personality traits; Lervåg, 2020). Therefore, these within‐person effects are more suitable to base intervention strategies upon as they provide more direct evidence that peer victimization and perceived physical health associate with one another.…”
Section: Discussionmentioning
confidence: 99%
“…That is, even if as compared with adolescents with low exposure to peer victimization, peer victimized adolescents report poorer perceived physical health, it cannot be assumed that when adolescents are exposed to more peer victimization (as compared with their own average exposure level), they also report higher levels of perceived physical health problems (as compared with their own average level). Mounting evidence highlights the importance of examining associations at the within‐person level (e.g., Hygen et al, 2020; Lervåg, 2020; Masselink et al, 2018), as these are fundamental to provide knowledge that can more directly guide intervention and prevention efforts. To our knowledge, only Lee and Vaillancourt (2019) examined both the between‐ and within‐person effects of peer victimization on somatic symptoms.…”
Section: Introductionmentioning
confidence: 99%
“…In this way, the reciprocal effects between peer problems and NSSI were examined at the within‐person level and referred to intra‐personal deviations from individuals’ own expected levels, allowing us to know whether changes in adolescents’ own NSSI were related to subsequent deviations in their own peer problems, and vice versa. Notably, to date these models offer the closest possible approximation to identify “causal effects” using observational data (Lervåg, 2020 ).…”
Section: Introductionmentioning
confidence: 99%
“…In the present study, we focus on the predisposition and scar explanations for the relation between depressive symptoms and the Big Five personality traits in adolescence. From a methodological standpoint, when examining longitudinal predictions as we aim to do in this study, several developmentalists recommend statistical methods that distinguish between-and within-person information (e.g., Hamaker et al, 2015;Hamaker et al, 2020;Lervåg, 2020). We argue that the predisposition and scar models are indeed within-person questions of nature (see Hamaker et al, 2020, for a conceptual discussion).…”
mentioning
confidence: 99%
“…However, the cross-lagged paths in CLPM represent a conflation of between-person and within-person information, which makes interpretation challenging (Berry & Willoughby, 2017). Moreover, because time-invariant betweenperson effects can confound the estimates of cross-lagged parameters, the use of CLPM to examine developmental questions, has been advised against (see, e.g., Lervåg, 2020).…”
mentioning
confidence: 99%