cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.60641/s6fk-1d65
title: Flexibility

description: The Netherlands Twin Register (NTR) consists of individuals who have agreed to participate in twin-family studies and was established and is managed by the Department of Biological Psychology, VU University Amsterdam (see: https://tweelingenregister.vu.nl/). The NTR was established in 1987 and has enrolled around 120.000 twins and a roughly equal number of their relatives. The majority of twin families have participated one or more times in survey studies on a host of epidemiological variables including social demography, personality, lifestyle, somatic and mental health, and subsamples took part in biomaterial collection (e.g. DNA) and dedicated projects for e.g. neuropsychological, biomarker, and behavioral traits. The recruitment into the NTR is fully inclusive without any restrictions on enrolment. The NTR is committed to actively seek the commitment of its participants to science and their continued involvement in NTR research by maintaining a website, electronic newsletters, and the MijnNTR portal that provides personalized feedback to participants. The NTR resources, e.g. the longitudinal phenotyping, the extended pedigree structures, and the multi-generation genotyping allow for future twin-family research that will contribute to gene discovery, causality modelling, and studies of genetic and cultural inheritance of behavioral traits and mental and physical health. In the CID data catalogue, only the NTR projects for children and adolescents (<18 years of age) have been included. This is refered to as the Young Netherlands Twin Register (YNTR). 
description: Physical flexibility was measured using a standard sit-and-reach box (Baseline Sit-and-reach Trunk Flexibility Box, Fabrication Enterprises Inc., USA).
DOI: 10.60641/ndh2-qj68
title: Anthropometry

description: The Netherlands Twin Register (NTR) consists of individuals who have agreed to participate in twin-family studies and was established and is managed by the Department of Biological Psychology, VU University Amsterdam (see: https://tweelingenregister.vu.nl/). The NTR was established in 1987 and has enrolled around 120.000 twins and a roughly equal number of their relatives. The majority of twin families have participated one or more times in survey studies on a host of epidemiological variables including social demography, personality, lifestyle, somatic and mental health, and subsamples took part in biomaterial collection (e.g. DNA) and dedicated projects for e.g. neuropsychological, biomarker, and behavioral traits. The recruitment into the NTR is fully inclusive without any restrictions on enrolment. The NTR is committed to actively seek the commitment of its participants to science and their continued involvement in NTR research by maintaining a website, electronic newsletters, and the MijnNTR portal that provides personalized feedback to participants. The NTR resources, e.g. the longitudinal phenotyping, the extended pedigree structures, and the multi-generation genotyping allow for future twin-family research that will contribute to gene discovery, causality modelling, and studies of genetic and cultural inheritance of behavioral traits and mental and physical health. In the CID data catalogue, only the NTR projects for children and adolescents (<18 years of age) have been included. This is refered to as the Young Netherlands Twin Register (YNTR). 
description: Anthropometric measurements include height, weight, body mass index (BMI), and body circumferences.
description: In NTR project YS2, growth data were obtained via the Youth Health Services for multiples and since 2010 also for siblings; paternal reports are available since 2014. In NTR project YS_10, anthropometry information was included since 2008. In NTR project YC_BS1, height and weight were also measured prior to MRI scanning. In NTR project YC_BS2, height and weight were also measured after MRI scanning and growth data was obtained via the Youth Health Services for multiples. In NTR project YC_DSC, birth height and weight were obtained during a telephone interview. In NTR project YE_FITNSS, anthropometrics were obtained at the beginning of the experimental protocol. In NTR projects YE_ATTEF2 and YE_ATTEF3, height and weight were measured at the end of the experimental protocol. In NTR project YC_ADHMRI, birth height and weight were obtained during a telephone interview and current height and weight prior to the MRI scanning. In NTR project YE_COG18, physical measurements including antropometric information were also obtained during the experimental protocol.
DOI: 10.60641/p7cg-qk66
title: Family Environment Scale (FES) - Conflict

description: The Netherlands Twin Register (NTR) consists of individuals who have agreed to participate in twin-family studies and was established and is managed by the Department of Biological Psychology, VU University Amsterdam (see: https://tweelingenregister.vu.nl/). The NTR was established in 1987 and has enrolled around 120.000 twins and a roughly equal number of their relatives. The majority of twin families have participated one or more times in survey studies on a host of epidemiological variables including social demography, personality, lifestyle, somatic and mental health, and subsamples took part in biomaterial collection (e.g. DNA) and dedicated projects for e.g. neuropsychological, biomarker, and behavioral traits. The recruitment into the NTR is fully inclusive without any restrictions on enrolment. The NTR is committed to actively seek the commitment of its participants to science and their continued involvement in NTR research by maintaining a website, electronic newsletters, and the MijnNTR portal that provides personalized feedback to participants. The NTR resources, e.g. the longitudinal phenotyping, the extended pedigree structures, and the multi-generation genotyping allow for future twin-family research that will contribute to gene discovery, causality modelling, and studies of genetic and cultural inheritance of behavioral traits and mental and physical health. In the CID data catalogue, only the NTR projects for children and adolescents (<18 years of age) have been included. This is refered to as the Young Netherlands Twin Register (YNTR). 
description: The Family Environment Scale (FES)  -Conflict Subscale evaluates the degree in which family members express anger and interactions that stimulate anger.
DOI: 10.60641/cw99-pz78
title: Nijmeegse Ouderlijke Stress Index - Short Form (NOSI)

description: The Netherlands Twin Register (NTR) consists of individuals who have agreed to participate in twin-family studies and was established and is managed by the Department of Biological Psychology, VU University Amsterdam (see: https://tweelingenregister.vu.nl/). The NTR was established in 1987 and has enrolled around 120.000 twins and a roughly equal number of their relatives. The majority of twin families have participated one or more times in survey studies on a host of epidemiological variables including social demography, personality, lifestyle, somatic and mental health, and subsamples took part in biomaterial collection (e.g. DNA) and dedicated projects for e.g. neuropsychological, biomarker, and behavioral traits. The recruitment into the NTR is fully inclusive without any restrictions on enrolment. The NTR is committed to actively seek the commitment of its participants to science and their continued involvement in NTR research by maintaining a website, electronic newsletters, and the MijnNTR portal that provides personalized feedback to participants. The NTR resources, e.g. the longitudinal phenotyping, the extended pedigree structures, and the multi-generation genotyping allow for future twin-family research that will contribute to gene discovery, causality modelling, and studies of genetic and cultural inheritance of behavioral traits and mental and physical health. In the CID data catalogue, only the NTR projects for children and adolescents (<18 years of age) have been included. This is refered to as the Young Netherlands Twin Register (YNTR). 
description: The Nijmeegse Ouderlijke Index (NOSI, Parental Stress Index) is a parent self-report measure to assess parental stress. Includes items about parental acceptance and sense of competence.
description: In NTR, a 12 item version of the Parenting Stress Index - Short Form (PSI–SF, Abidin, R. R. (1995). Parenting Stress Index (PSI) manual (3rd ed.). Charlottesville, VA: Pediatric Psychology Press) was used.
DOI: 10.60641/dcqy-g335
title: Urine sample

description: The Netherlands Twin Register (NTR) consists of individuals who have agreed to participate in twin-family studies and was established and is managed by the Department of Biological Psychology, VU University Amsterdam (see: https://tweelingenregister.vu.nl/). The NTR was established in 1987 and has enrolled around 120.000 twins and a roughly equal number of their relatives. The majority of twin families have participated one or more times in survey studies on a host of epidemiological variables including social demography, personality, lifestyle, somatic and mental health, and subsamples took part in biomaterial collection (e.g. DNA) and dedicated projects for e.g. neuropsychological, biomarker, and behavioral traits. The recruitment into the NTR is fully inclusive without any restrictions on enrolment. The NTR is committed to actively seek the commitment of its participants to science and their continued involvement in NTR research by maintaining a website, electronic newsletters, and the MijnNTR portal that provides personalized feedback to participants. The NTR resources, e.g. the longitudinal phenotyping, the extended pedigree structures, and the multi-generation genotyping allow for future twin-family research that will contribute to gene discovery, causality modelling, and studies of genetic and cultural inheritance of behavioral traits and mental and physical health. In the CID data catalogue, only the NTR projects for children and adolescents (<18 years of age) have been included. This is refered to as the Young Netherlands Twin Register (YNTR). 
description: First-morning, spot, or 24 hour urine sample.
description: In NTR projects YC_ACTIONBB1_1, YC_ACTIONBB1_2, YC_ACTIONBB2, and YC_ACTIONBB3, first-morning urine was collected with a uritainer and immediately frozen, for the collection protocol see: https://doi.org/10.3389/fpsyt.2020.00165, https://www.action-euproject.eu/content/data-protocols, and Appendices in https://hdl.handle.net/1871.1/ff5055ee-113a-45f7-a40f-8a624cef4c84. In NTR projects YC_BS1, YC_BS2, and YC_BS3, first morning urine was collected at home on two consecutive days. All samples were stored in the refrigerator (4°C) in the family’s home. For the collection protocol see: https://doi.org/10.1017/thg.2012.4. Participants of NTR project YE_COG18 collected a urine sample as part of the Adult Netherlands Twin Register Biobank project (see: https://doi.org/10.1375/twin.13.3.231).
DOI: 10.60641/he11-mq82
title: Subjective exercise ability

description: The Netherlands Twin Register (NTR) consists of individuals who have agreed to participate in twin-family studies and was established and is managed by the Department of Biological Psychology, VU University Amsterdam (see: https://tweelingenregister.vu.nl/). The NTR was established in 1987 and has enrolled around 120.000 twins and a roughly equal number of their relatives. The majority of twin families have participated one or more times in survey studies on a host of epidemiological variables including social demography, personality, lifestyle, somatic and mental health, and subsamples took part in biomaterial collection (e.g. DNA) and dedicated projects for e.g. neuropsychological, biomarker, and behavioral traits. The recruitment into the NTR is fully inclusive without any restrictions on enrolment. The NTR is committed to actively seek the commitment of its participants to science and their continued involvement in NTR research by maintaining a website, electronic newsletters, and the MijnNTR portal that provides personalized feedback to participants. The NTR resources, e.g. the longitudinal phenotyping, the extended pedigree structures, and the multi-generation genotyping allow for future twin-family research that will contribute to gene discovery, causality modelling, and studies of genetic and cultural inheritance of behavioral traits and mental and physical health. In the CID data catalogue, only the NTR projects for children and adolescents (<18 years of age) have been included. This is refered to as the Young Netherlands Twin Register (YNTR). 
description: Subjective exercise ability was assessed in an online survey. Participants were asked to rate how good they were at sports and how they compared themselves to their peers on sport ability, stamina, and muscle strenght.
description: When subjects failed to take the survey online, the survey was done by telephone.
DOI: 10.60641/phqs-wm91
title: Adult Self Report (ASR)

description: The Netherlands Twin Register (NTR) consists of individuals who have agreed to participate in twin-family studies and was established and is managed by the Department of Biological Psychology, VU University Amsterdam (see: https://tweelingenregister.vu.nl/). The NTR was established in 1987 and has enrolled around 120.000 twins and a roughly equal number of their relatives. The majority of twin families have participated one or more times in survey studies on a host of epidemiological variables including social demography, personality, lifestyle, somatic and mental health, and subsamples took part in biomaterial collection (e.g. DNA) and dedicated projects for e.g. neuropsychological, biomarker, and behavioral traits. The recruitment into the NTR is fully inclusive without any restrictions on enrolment. The NTR is committed to actively seek the commitment of its participants to science and their continued involvement in NTR research by maintaining a website, electronic newsletters, and the MijnNTR portal that provides personalized feedback to participants. The NTR resources, e.g. the longitudinal phenotyping, the extended pedigree structures, and the multi-generation genotyping allow for future twin-family research that will contribute to gene discovery, causality modelling, and studies of genetic and cultural inheritance of behavioral traits and mental and physical health. In the CID data catalogue, only the NTR projects for children and adolescents (<18 years of age) have been included. This is refered to as the Young Netherlands Twin Register (YNTR). 
description: The Adult Self Report (ASR) is part of the Achenbach System of Empirically Based Assessment (ASEBA) taxonomy and is a validated instrument to assess psychiatric symptoms in both clinical and research settings. The ASEBA self report version for adults 18 to 59 years old includes the syndrome scales Anxious/Depressed, Withdrawn, Somatic Complaints, Thought Problems, Attention Problems, Aggressive Behavior, Rule Breaking Behavior, and Intrusive, the DSM-oriented scales Depressive Problems, Anxiety Problems, Somatic Problems, Avoidant Personality Problems, and Antisocial Personality Problems, the substance use scales Tobacco, Alcohol, Drugs, and Mean Substance Use, the broadband scales Internalizing, Externalizing, and Total Problems, and, optionally, the adaptive functioning scales Friends, Spouse/Partner, Family, Job, Education, and Personal Strengths.
description: In NTR, the substance use and adaptive functioning scales are not available. Two additional syndrome scales (Other Problems and Socially Desirable) and three additional DSM-oriented scales (ADH Problems, Inattention Problems, and Hyperactivity-impulisivty Problems) are available in NTR.
DOI: 10.60641/e30f-jj87
title: Implicit Theories of Intelligence Scale for Children (ITIS)

description: The Netherlands Twin Register (NTR) consists of individuals who have agreed to participate in twin-family studies and was established and is managed by the Department of Biological Psychology, VU University Amsterdam (see: https://tweelingenregister.vu.nl/). The NTR was established in 1987 and has enrolled around 120.000 twins and a roughly equal number of their relatives. The majority of twin families have participated one or more times in survey studies on a host of epidemiological variables including social demography, personality, lifestyle, somatic and mental health, and subsamples took part in biomaterial collection (e.g. DNA) and dedicated projects for e.g. neuropsychological, biomarker, and behavioral traits. The recruitment into the NTR is fully inclusive without any restrictions on enrolment. The NTR is committed to actively seek the commitment of its participants to science and their continued involvement in NTR research by maintaining a website, electronic newsletters, and the MijnNTR portal that provides personalized feedback to participants. The NTR resources, e.g. the longitudinal phenotyping, the extended pedigree structures, and the multi-generation genotyping allow for future twin-family research that will contribute to gene discovery, causality modelling, and studies of genetic and cultural inheritance of behavioral traits and mental and physical health. In the CID data catalogue, only the NTR projects for children and adolescents (<18 years of age) have been included. This is refered to as the Young Netherlands Twin Register (YNTR). 
description: The Implicit Theories of Intelligence Scale for Children (ITIS) measures growth mindset and the extent to which a child believes that her or his intelligence can be improved.
DOI: 10.60641/0pgr-jd52
title: Blood pressure

description: The Netherlands Twin Register (NTR) consists of individuals who have agreed to participate in twin-family studies and was established and is managed by the Department of Biological Psychology, VU University Amsterdam (see: https://tweelingenregister.vu.nl/). The NTR was established in 1987 and has enrolled around 120.000 twins and a roughly equal number of their relatives. The majority of twin families have participated one or more times in survey studies on a host of epidemiological variables including social demography, personality, lifestyle, somatic and mental health, and subsamples took part in biomaterial collection (e.g. DNA) and dedicated projects for e.g. neuropsychological, biomarker, and behavioral traits. The recruitment into the NTR is fully inclusive without any restrictions on enrolment. The NTR is committed to actively seek the commitment of its participants to science and their continued involvement in NTR research by maintaining a website, electronic newsletters, and the MijnNTR portal that provides personalized feedback to participants. The NTR resources, e.g. the longitudinal phenotyping, the extended pedigree structures, and the multi-generation genotyping allow for future twin-family research that will contribute to gene discovery, causality modelling, and studies of genetic and cultural inheritance of behavioral traits and mental and physical health. In the CID data catalogue, only the NTR projects for children and adolescents (<18 years of age) have been included. This is refered to as the Young Netherlands Twin Register (YNTR). 
description: Blood pressure is the force of blood pushing against the walls of arteries as the heart pumps blood around the body. Systolic pressure is the pressure when the heart contracts and pushes blood out and diastolic pressure is the pressure when the heart relaxes and fills with blood. In adults, the systolic pressure normally ranges between 80 and 120 and the diastolic pressure between 60 and 90.
description: In NTR project YC_BS3, blood pressure was measured in a sitting position with an Omron automatic blood pressure monitoring device. The cuff was attached to the non-dominant arm and participants were asked to remain relaxed and still, and refrain from talking and laughing. In NTR project YE_FITNSS, resting blood pressure was measured twice (in the 4th and 5th minute, Omron HEM-907 digital blood pressure monitor). The mean of these two measurements was used as baseline blood pressure measure. In NTR project YE_COG18, systolic and diastolic blood pressure was measured at four time points during the testing day using a Spacelabs 90207 device (Redmont, Washington, USA). If present during the testing day, parental blood pressure was also measured. In NTR project YE_ATTEF3, systolic and diastolic blood pressure was measured with an Omron blood pressure monitor in a seated position.
DOI: 10.60641/h080-7x67
title: Rey’s Verbal Learning Test

description: The Netherlands Twin Register (NTR) consists of individuals who have agreed to participate in twin-family studies and was established and is managed by the Department of Biological Psychology, VU University Amsterdam (see: https://tweelingenregister.vu.nl/). The NTR was established in 1987 and has enrolled around 120.000 twins and a roughly equal number of their relatives. The majority of twin families have participated one or more times in survey studies on a host of epidemiological variables including social demography, personality, lifestyle, somatic and mental health, and subsamples took part in biomaterial collection (e.g. DNA) and dedicated projects for e.g. neuropsychological, biomarker, and behavioral traits. The recruitment into the NTR is fully inclusive without any restrictions on enrolment. The NTR is committed to actively seek the commitment of its participants to science and their continued involvement in NTR research by maintaining a website, electronic newsletters, and the MijnNTR portal that provides personalized feedback to participants. The NTR resources, e.g. the longitudinal phenotyping, the extended pedigree structures, and the multi-generation genotyping allow for future twin-family research that will contribute to gene discovery, causality modelling, and studies of genetic and cultural inheritance of behavioral traits and mental and physical health. In the CID data catalogue, only the NTR projects for children and adolescents (<18 years of age) have been included. This is refered to as the Young Netherlands Twin Register (YNTR). 
description: The Rey’s Auditory Verbal Learning Task (AVLT) measures short- and long-term verbal memory. In the task, a list of 15 unrelated, concrete nouns is presented via audio with a 1 second interval over five learning trials. After each presentation, participants have to name as many of the presented words as possible. Next, after a delay interval of 20-30 minutes, and with no further presentations of the list, delayed recall is assessed. Performance is measured after each trial by number of correct words, perseverations, intrusions, and double intrusions.