<resource xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://datacite.org/schema/kernel-4" xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4.1/metadata.xsd"><identifier identifierType="DOI">10.34934/DVN/KDQ3LS</identifier><creators><creator><creatorName nameType="Personal">Inez Myin-Germeys</creatorName><givenName>Inez</givenName><familyName>Myin-Germeys</familyName><nameIdentifier nameIdentifierScheme="ORCID">0000-0002-3731-4930</nameIdentifier><affiliation>Center for Contextual Psychiatry, KU Leuven</affiliation></creator><creator><creatorName nameType="Personal">Olivia J. Kirtley</creatorName><givenName>Olivia</givenName><familyName>J. Kirtley</familyName><nameIdentifier nameIdentifierScheme="ORCID">0000-0001-5879-4120</nameIdentifier><affiliation>Center for Contextual Psychiatry, KU Leuven</affiliation></creator><creator><creatorName nameType="Personal">Robin Achterhof</creatorName><givenName>Robin</givenName><familyName>Achterhof</familyName><nameIdentifier nameIdentifierScheme="ORCID">0000-0002-3269-2270</nameIdentifier><affiliation>Center for Contextual Psychiatry, KU Leuven</affiliation></creator><creator><creatorName nameType="Personal">Julie J. Janssens</creatorName><givenName>Julie</givenName><familyName>J. Janssens</familyName><nameIdentifier nameIdentifierScheme="ORCID">0000-0003-3240-9380</nameIdentifier><affiliation>Center for Contextual Psychiatry, KU Leuven</affiliation></creator><creator><creatorName nameType="Personal">Noëmi Hagemann</creatorName><givenName>Noëmi</givenName><familyName>Hagemann</familyName><nameIdentifier nameIdentifierScheme="ORCID">0000-0001-9008-4305</nameIdentifier><affiliation>Center for Contextual Psychiatry, KU Leuven</affiliation></creator><creator><creatorName nameType="Personal">Eva Bamps</creatorName><givenName>Eva</givenName><familyName>Bamps</familyName><nameIdentifier nameIdentifierScheme="ORCID">0000-0003-0348-1762</nameIdentifier><affiliation>Center for Contextual Psychiatry, KU Leuven</affiliation></creator><creator><creatorName nameType="Personal">Zeynep Akcaoglu</creatorName><givenName>Zeynep</givenName><familyName>Akcaoglu</familyName><nameIdentifier nameIdentifierScheme="ORCID">0000-0002-8619-6301</nameIdentifier><affiliation>Center for Contextual Psychiatry, KU Leuven</affiliation></creator><creator><creatorName nameType="Personal">Anu P. Hiekkaranta</creatorName><givenName>Anu</givenName><familyName>P. Hiekkaranta</familyName><nameIdentifier nameIdentifierScheme="ORCID">0000-0001-9789-8539</nameIdentifier><affiliation>Center for Contextual Psychiatry, KU Leuven</affiliation></creator><creator><creatorName nameType="Personal">Tessa Biesemans</creatorName><givenName>Tessa</givenName><familyName>Biesemans</familyName><affiliation>Center for Contextual Psychiatry, KU Leuven</affiliation></creator><creator><creatorName nameType="Personal">Karlijn S. F. M. Hermans</creatorName><givenName>Karlijn</givenName><familyName>S. F. M. Hermans</familyName><nameIdentifier nameIdentifierScheme="ORCID">0000-0003-3570-6479</nameIdentifier><affiliation>Center for Contextual Psychiatry, KU Leuven</affiliation></creator><creator><creatorName nameType="Personal">Aleksandra Lecei</creatorName><givenName>Aleksandra</givenName><familyName>Lecei</familyName><nameIdentifier nameIdentifierScheme="ORCID">0000-0003-0877-0520</nameIdentifier><affiliation>Center for Contextual Psychiatry, KU Leuven</affiliation></creator></creators><titles><title>SIGMA (longitudinal cohort study on adolescent mental health)</title></titles><publisher>Social Sciences and Digital Humanities Archive – SODHA</publisher><publicationYear>2025</publicationYear><subjects><subject>Medicine, Health and Life Sciences</subject><subject>Adolescents, Ecological Momentary Assessment, Experience Sampling, Mental Health</subject><subject schemeURI="https://vocabularies.cessda.eu/vocabulary/TopicClassification" subjectScheme="CESSDA Topic Classification">Adolescents, Ecological Momentary Assessment, Experience Sampling, Mental Health</subject></subjects><contributors><contributor contributorType="ContactPerson"><contributorName nameType="Personal">Wampers, Martien</contributorName><givenName>Martien</givenName><familyName>Wampers</familyName><affiliation>Associatie KU Leuven</affiliation></contributor><contributor contributorType="Producer"><contributorName nameType="Organizational">Center for Contextual Psychiatry</contributorName><affiliation>KU Leuven</affiliation></contributor><contributor contributorType="Distributor"><contributorName nameType="Organizational">Center for Contextual Psychiatry</contributorName><affiliation>KU Leuven</affiliation></contributor></contributors><dates><date dateType="Submitted">2025-10-16</date><date dateType="Updated">2025-11-19</date><date dateType="Collected">2018-01/2023-04</date></dates><resourceType resourceTypeGeneral="Dataset">Survey data</resourceType><relatedIdentifiers><relatedIdentifier relationType="IsCitedBy" relatedIdentifierType="DOI">10.31234/osf.io/jp2fk.</relatedIdentifier></relatedIdentifiers><sizes><size>6995538</size></sizes><formats><format>application/pdf</format></formats><version>1.0</version><rightsList><rights rightsURI="info:eu-repo/semantics/openAccess"/><rights/></rightsList><descriptions><description descriptionType="Abstract">A longitudinal study that combined questionnaires and ecological momentary assessment data to assess the relationships between social risk factors, psychological mechanisms and psychopathology in an initial sample of 1,913 adolescents.</description><description descriptionType="Other">Because this study contain sensitive mental health data, the actual research data are not deposited on SODHA. Instead, we store metadata records in the same CCP Dataverse on SODHA and include a link to the corresponding dataset in DROPS (https://redcap.gbiomed.kuleuven.be/surveys/?s=WDYAFAHWK4), where the data are securely stored and managed under restricted access conditions. Data is available upon request via abstract submission.</description></descriptions><geoLocations><geoLocation><geoLocationPlace>Flanders, Belgium</geoLocationPlace></geoLocation></geoLocations><fundingReferences><fundingReference><funderName>Research Foundation Flanders (FWO)</funderName><awardNumber>GOF8416N</awardNumber></fundingReference></fundingReferences></resource>