This statistic shows the results of a survey conducted in the United States in 2019 on how long the respondents thought the feeling of love could last in a relationship. According to 77 percent of respondents, the feeling of love in a relationship can last a lifetime.

This statistic shows the results of a survey conducted in the United States in 2017 on the duration of the current relationship status of Americans. The results were then sorted by age. Some 39 percent of respondents between 30 and 49 years stated they have been single/in a relationship for more than 10 years.

Over 20 years, research was conducted at Boston College with the goal of exploring how couples adapt in relationships that last. In-depth interviews were used to explore how partners deal and cope with various aspects of their relationships over the years. Beginning in the early 1990's, the research focused on a diverse sample of heterosexual couples that had been married over 20 years. One hundred forty-four spouses in 72 marriages were interviewed. As the research evolved through the 1990's, 72 same sex partners from 36 lesbian and gay male relationships were added to the study. The final database includes 216 transcribed interviews. The study examines social influences including economic, racial, ethnic, and other cultural variables and areas such as modes of managing conflict and psychological intimacy. 1. Demographic data for individuals with coding for couples. Tab-delimited and SPSS format. 2. Qualitative Data – Includes transcribed interviews for the 216 participants and interview themes Interview themes are documents created with HyperRESEARCH in Word format with interview extracts based on relations themes such as: Aids; Alcoholism; Change; Circumstances; Commitment; Communication; Conflict; Conflict management; Crises; Decision making; Equity; Family of origin; Feminism; Finances; Homophobia; Initial attraction; Intimacy physical; Intimacy psychological; Intimacy sexual; Marital behavior; Meaning of spouse; Object relations; Parenting; Phases; Problem solving; Racism; Relatedness; Relational evolution; Relational fit; Relational value; Religion; Role expectations; Role models; Roles; Satisfaction; Social support; Therapy; Transitions.

According to a survey conducted in 2019, * out of 10 South Koreans answered that there is an expiry date of love in a relationship. The largest share of male respondents stated that intense love lasts *** to ***** months in a relationship, while most female respondents thought it lasts *** to *** years.

A fundamental question of any new relationship is, will it last? Transient relationships, recently defined by the authors, are an ideal type of social tie to explore this question: these relationships are characterized by distinguishable starting and ending temporal points, linking the question of tie longevity to relationship finite lifetime. In this study, we use mobile phone data sets from the UK and Italy to analyze the weekly allocation of time invested in maintaining transient relationships. We find that more relationships are created during weekdays, with a greater proportion of them receiving more contact during these days of the week in the long term. The smaller group of relationships that receive more phone calls during the weekend tend to remain active for more time. We uncover a sorting process by which some ties are moved from weekdays to weekends and vice versa, mostly in the first half of the relationship. This process also carries more information about the ultimate lifetime of a tie than the part of the week when the relationship started, which suggests an early evaluation period that leads to a decision on how to allocate time to different types of transient ties.

Persons 18 to 49 years who have had sexual relationships at some time in their life by sex, number of nights out in the last 12 months and initial age at first relationship. National.

This statistic illustrates the findings of a survey on the duration of current relationship or being single in the United Kingdom (UK) in June 2017, by sexual orientation. During the survey period, it was found that ** percent of responding homosexual individuals stated that they had been single or married for ten years and longer. Furthermore, it could be seen that the majority of respondents had been either single or in a relationship for longer than *** year.

Persons 18 to 49 years who have had sexual relationships at some time in their life by sex, number of days they have been drunk in the last month and initial age at first relationship. National.

The National Child Development Study (NCDS) is a continuing longitudinal study that seeks to follow the lives of all those living in Great Britain who were born in one particular week in 1958. The aim of the study is to improve understanding of the factors affecting human development over the whole lifespan.

The NCDS has its origins in the Perinatal Mortality Survey (PMS) (the original PMS study is held at the UK Data Archive under SN 2137). This study was sponsored by the National Birthday Trust Fund and designed to examine the social and obstetric factors associated with stillbirth and death in early infancy among the 17,000 children born in England, Scotland and Wales in that one week. Selected data from the PMS form NCDS sweep 0, held alongside NCDS sweeps 1-3, under SN 5565.

Survey and Biomeasures Data (GN 33004):
To date there have been ten attempts to trace all members of the birth cohort in order to monitor their physical, educational and social development. The first three sweeps were carried out by the National Children's Bureau, in 1965, when respondents were aged 7, in 1969, aged 11, and in 1974, aged 16 (these sweeps form NCDS1-3, held together with NCDS0 under SN 5565). The fourth sweep, also carried out by the National Children's Bureau, was conducted in 1981, when respondents were aged 23 (held under SN 5566). In 1985 the NCDS moved to the Social Statistics Research Unit (SSRU) - now known as the Centre for Longitudinal Studies (CLS). The fifth sweep was carried out in 1991, when respondents were aged 33 (held under SN 5567). For the sixth sweep, conducted in 1999-2000, when respondents were aged 42 (NCDS6, held under SN 5578), fieldwork was combined with the 1999-2000 wave of the 1970 Birth Cohort Study (BCS70), which was also conducted by CLS (and held under GN 33229). The seventh sweep was conducted in 2004-2005 when the respondents were aged 46 (held under SN 5579), the eighth sweep was conducted in 2008-2009 when respondents were aged 50 (held under SN 6137), the ninth sweep was conducted in 2013 when respondents were aged 55 (held under SN 7669), and the tenth sweep was conducted in 2020-24 when the respondents were aged 60-64 (held under SN 9412).

A Secure Access version of the NCDS is available under SN 9413, containing detailed sensitive variables not available under Safeguarded access (currently only sweep 10 data). Variables include uncommon health conditions (including age at diagnosis), full employment codes and income/finance details, and specific life circumstances (e.g. pregnancy details, year/age of emigration from GB).

Four separate datasets covering responses to NCDS over all sweeps are available. National Child Development Deaths Dataset: Special Licence Access (SN 7717) covers deaths; National Child Development Study Response and Outcomes Dataset (SN 5560) covers all other responses and outcomes; National Child Development Study: Partnership Histories (SN 6940) includes data on live-in relationships; and National Child Development Study: Activity Histories (SN 6942) covers work and non-work activities. Users are advised to order these studies alongside the other waves of NCDS.

From 2002-2004, a Biomedical Survey was completed and is available under End User Licence (EUL) (SN 8731) and Special Licence (SL) (SN 5594). Proteomics analyses of blood samples are available under SL SN 9254.

Linked Geographical Data (GN 33497):
A number of geographical variables are available, under more restrictive access conditions, which can be linked to the NCDS EUL and SL access studies.

Linked Administrative Data (GN 33396):
A number of linked administrative datasets are available, under more restrictive access conditions, which can be linked to the NCDS EUL and SL access studies. These include a Deaths dataset (SN 7717) available under SL and the Linked Health Administrative Datasets (SN 8697) available under Secure Access.

Multi-omics Data and Risk Scores Data (GN 33592)
Proteomics analyses were run on the blood samples collected from NCDS participants in 2002-2004 and are available under SL SN 9254. Metabolomics analyses were conducted on respondents of sweep 10 and are available under SL SN 9411.

Additional Sub-Studies (GN 33562):
In addition to the main NCDS sweeps, further studies have also been conducted on a range of subjects such as parent migration, unemployment, behavioural studies and respondent essays. The full list of NCDS studies available from the UK Data Service can be found on the NCDS series access data webpage.

How to access genetic and/or bio-medical sample data from a range of longitudinal surveys:
For information on how to access biomedical data from NCDS that are not held at the UKDS, see the CLS Genetic data and biological samples webpage.

Further information about the full NCDS series can be found on the Centre for Longitudinal Studies website.

The purpose of the National Child Development Study: Partnership Histories, 1974-2013 is to merge all data on live-in relationships in successive sweeps into one longitudinal dataset. Data on live-in relationships lasting one month or more have been collected in all National Child Development Study: Partnership Histories (NCDS) sweeps from sweep 5 (age 33). The focus of the questions asked at each sweep are about the relationship start date; whether married/became civil partner (sweep 8 and later) to this partner and if so the marriage/civil partnership dates; whether still together with this partner and if not the date that the relationship ended; how the relationship ended; if relevant whether divorced and divorce dates; the sex, marital status and age at start of relationship of the partner.

Edition information
The first edition of the NCDS partnership histories, deposited at the UK Data Service in December 2011 included partnerships, reported by cohort members, up to and including the 2008 data sweep. The second edition of the NCDS partnership histories (November 2017) includes partnership data from the latest NCDS data sweep (2013). Some modifications have also been made to the pre-2013 NCDS partnership data due to enhancements to the NCDS partnership histories program and additional data cleaning.

Abstract copyright UK Data Service and data collection copyright owner.The National Child Development Study (NCDS) is a continuing longitudinal study that seeks to follow the lives of all those living in Great Britain who were born in one particular week in 1958. The aim of the study is to improve understanding of the factors affecting human development over the whole lifespan. The NCDS has its origins in the Perinatal Mortality Survey (PMS) (the original PMS study is held at the UK Data Archive under SN 2137). This study was sponsored by the National Birthday Trust Fund and designed to examine the social and obstetric factors associated with stillbirth and death in early infancy among the 17,000 children born in England, Scotland and Wales in that one week. Selected data from the PMS form NCDS sweep 0, held alongside NCDS sweeps 1-3, under SN 5565. Survey and Biomeasures Data (GN 33004):To date there have been nine attempts to trace all members of the birth cohort in order to monitor their physical, educational and social development. The first three sweeps were carried out by the National Children's Bureau, in 1965, when respondents were aged 7, in 1969, aged 11, and in 1974, aged 16 (these sweeps form NCDS1-3, held together with NCDS0 under SN 5565). The fourth sweep, also carried out by the National Children's Bureau, was conducted in 1981, when respondents were aged 23 (held under SN 5566). In 1985 the NCDS moved to the Social Statistics Research Unit (SSRU) - now known as the Centre for Longitudinal Studies (CLS). The fifth sweep was carried out in 1991, when respondents were aged 33 (held under SN 5567). For the sixth sweep, conducted in 1999-2000, when respondents were aged 42 (NCDS6, held under SN 5578), fieldwork was combined with the 1999-2000 wave of the 1970 Birth Cohort Study (BCS70), which was also conducted by CLS (and held under GN 33229). The seventh sweep was conducted in 2004-2005 when the respondents were aged 46 (held under SN 5579), the eighth sweep was conducted in 2008-2009 when respondents were aged 50 (held under SN 6137) and the ninth sweep was conducted in 2013 when respondents were aged 55 (held under SN 7669). Four separate datasets covering responses to NCDS over all sweeps are available. National Child Development Deaths Dataset: Special Licence Access (SN 7717) covers deaths; National Child Development Study Response and Outcomes Dataset (SN 5560) covers all other responses and outcomes; National Child Development Study: Partnership Histories (SN 6940) includes data on live-in relationships; and National Child Development Study: Activity Histories (SN 6942) covers work and non-work activities. Users are advised to order these studies alongside the other waves of NCDS.From 2002-2004, a Biomedical Survey was completed and is available under End User Licence (EUL) (SN 8731) and Special Licence (SL) (SN 5594). Proteomics analyses of blood samples are available under SL SN 9254.Linked Geographical Data (GN 33497): A number of geographical variables are available, under more restrictive access conditions, which can be linked to the NCDS EUL and SL access studies. Linked Administrative Data (GN 33396):A number of linked administrative datasets are available, under more restrictive access conditions, which can be linked to the NCDS EUL and SL access studies. These include a Deaths dataset (SN 7717) available under SL and the Linked Health Administrative Datasets (SN 8697) available under Secure Access.Additional Sub-Studies (GN 33562):In addition to the main NCDS sweeps, further studies have also been conducted on a range of subjects such as parent migration, unemployment, behavioural studies and respondent essays. The full list of NCDS studies available from the UK Data Service can be found on the NCDS series access data webpage. How to access genetic and/or bio-medical sample data from a range of longitudinal surveys:For information on how to access biomedical data from NCDS that are not held at the UKDS, see the CLS Genetic data and biological samples webpage.Further information about the full NCDS series can be found on the Centre for Longitudinal Studies website. The purpose of the National Child Development Study: Partnership Histories, 1974-2013 is to merge all data on live-in relationships in successive sweeps into one longitudinal dataset. Data on live-in relationships lasting one month or more have been collected in all National Child Development Study: Partnership Histories (NCDS) sweeps from sweep 5 (age 33). The focus of the questions asked at each sweep are about the relationship start date; whether married/became civil partner (sweep 8 and later) to this partner and if so the marriage/civil partnership dates; whether still together with this partner and if not the date that the relationship ended; how the relationship ended; if relevant whether divorced and divorce dates; the sex, marital status and age at start of relationship of the partner. Edition information The first edition of the NCDS partnership histories, deposited at the UK Data Service in December 2011 included partnerships, reported by cohort members, up to and including the 2008 data sweep. The second edition of the NCDS partnership histories (November 2017) includes partnership data from the latest NCDS data sweep (2013). Some modifications have also been made to the pre-2013 NCDS partnership data due to enhancements to the NCDS partnership histories program and additional data cleaning.

Persons 18 to 49 years who have had sexual relationships at some time in their life by sex, no. of nights spent away from home becuase of work/studies in the last 12 months and use of condom in last sexual relationship. National.

In 2021, around ** percent of respondents in the United States admitted to have cheated on any partner, current or previous. This is an increase compared to last year, when ** percent admitted to the same.

Riehl_Greater Ani Reproductive Synchrony Data (Dryad)Data for models investigating the number of days needed for females to synchronize reproduction in communally breeding Greater Anis, using female age, group size, clutch initiation date, group stability, and other variables as predictors. Note that female age is the minimum known age of adults in the population, and is therefore an underestimate for the first 3 years of the study (2007-2009). In all binary variables, 0 = no and 1 = yes.Riehl Greater Ani Reproductive Synchrony Data (Dryad).xlsx

The 1970 British Cohort Study (BCS70) is a longitudinal birth cohort study, following a nationally representative sample of over 17,000 people born in England, Scotland and Wales in a single week of 1970. Cohort members have been surveyed throughout their childhood and adult lives, mapping their individual trajectories and creating a unique resource for researchers. It is one of very few longitudinal studies following people of this generation anywhere in the world.

Since 1970, cohort members have been surveyed at ages 5, 10, 16, 26, 30, 34, 38, 42, 46, and 51. Featuring a range of objective measures and rich self-reported data, BCS70 covers an incredible amount of ground and can be used in research on many topics. Evidence from BCS70 has illuminated important issues for our society across five decades. Key findings include how reading for pleasure matters for children's cognitive development, why grammar schools have not reduced social inequalities, and how childhood experiences can impact on mental health in mid-life. Every day researchers from across the scientific community are using this important study to make new connections and discoveries.

BCS70 is run by the Centre for Longitudinal Studies (CLS), a research centre in the UCL Institute of Education, which is part of University College London. The content of BCS70 studies, including questions, topics and variables can be explored via the CLOSER Discovery website.

How to access genetic and/or bio-medical sample data from a range of longitudinal surveys:
For information on how to access biomedical data from BCS70 that are not held at the UKDS, see the CLS Genetic data and biological samples webpage.

Secure Access datasets
Secure Access versions of BCS70 have more restrictive access conditions than versions available under the standard End User Licence (EUL).

1970 British Cohort Study: Partnership Histories, 1986-2016:
Data on live-in relationships lasting one month or more have been collected in all BCS70 sweeps from sweep 6 (age 30) as well as data on current live-in relationship at sweep 5 (age 23). The purpose of the Partnership Histories dataset is to merge all data on live-in relationships in successive sweeps into one longitudinal dataset.

The focus of the questions asked at each sweep are about the relationship start date; whether married/became civil partner (sweep 8 and later) to this partner and if so the marriage/civil partnership dates; whether still together with this partner and if not the date that the relationship ended; how the relationship ended; if relevant whether divorced and divorce dates; the sex, marital status and age at start of relationship of the partner.

For the fourth edition (March 2021), both data files have been updated to include partnership data from the latest BCS70 data sweep (2016). Following Sweep 10 (2016, age 46), longitudinal datasets have been streamlined by removing cases which have never participated in any main sweep survey and are no longer being issued.

It’s Valentines Day - a day when people think about love and relationships. How people meet and form relationship works a lot quicker than in our parent’s or grandparent’s day. I’m sure many of you are told how it used to be - you met someone, dated them for a while, proposed, got married. People who grew up in small towns maybe had one shot at finding love, so they made sure they didn’t mess it up.

Today finding a date is not a challenge - finding a match is probably the issue. In the last 20 years we’ve gone from traditional dating to online dating to speed dating to online speed dating. Now you just swipe left or swipe right, if that’s your thing.

In 2002-2004, Columbia University ran a speed-dating experiment where they tracked data over 21 speed dating sessions for mostly young adults meeting people of the opposite sex.

1. The first five columns are demographic - we may want to use them to look at subgroups later.
2. The next seven columns are important. dec is the raters decision on whether this individual was a match and then follows scores out of ten on six characteristics: attractiveness, sincerity, intelligence, fun, ambitiousness and shared interests.
3. The like column is an overall rating. The prob column is a rating on whether the rater believed that interest would be reciprocated and the final column is a binary on whether the two had met prior to the speed date, with the lower value indicating that they had met before.

Original data

Acknowlegement

Foto von Helena Lopes auf Unsplash

Abstract copyright UK Data Service and data collection copyright owner.The 1970 British Cohort Study (BCS70) is a longitudinal birth cohort study, following a nationally representative sample of over 17,000 people born in England, Scotland and Wales in a single week of 1970. Cohort members have been sureveyed throughout their childhood and adult lives, mapping their individual trajectories and creating a unique resource for researchers. It is one of very few longitudinal studies following people of this generation anywhere in the world.Since 1970, cohort members have been surveyed at ages 5, 10, 16, 26, 30, 34, 38, 42 and 46. Featuring a range of objective measures and rich self-reported data, BCS70 covers an incredible amount of ground and can be used in research on many topics Evidence from BCS70 has illuminated important issues for our society across five decades. Key findings include how reading for pleasure matters for children's cognitive development, why grammar schools have not reduced social inequalities, and how childhood experiences can impact on mental health in mid-life. Every day researchers from across the scientific community are using this important study to make new connections and discoveries.BCS70 is run by the Centre for Longitudinal Studies (CLS), a research centre in the UCL Institute of Education, which is part of University College London. The content of BCS70 studies, including questions, topics and variables can be explored via the CLOSER Discovery website.How to access genetic and/or bio-medical sample data from a range of longitudinal surveys:For information on how to access biomedical data from BCS70 that are not held at the UKDS, see the CLS Genetic data and biological samples webpage.Secure Access datasetsSecure Access versions of BCS70 have more restrictive access conditions than versions available under the standard End User Licence (EUL). 1970 British Cohort Study: Partnership Histories, 1986-2016: Data on live-in relationships lasting one month or more have been collected in all BCS70 sweeps from sweep 6 (age 30) as well as data on current live-in relationship at sweep 5 (age 23). The purpose of the Partnership Histories dataset is to merge all data on live-in relationships in successive sweeps into one longitudinal dataset. The focus of the questions asked at each sweep are about the relationship start date; whether married/became civil partner (sweep 8 and later) to this partner and if so the marriage/civil partnership dates; whether still together with this partner and if not the date that the relationship ended; how the relationship ended; if relevant whether divorced and divorce dates; the sex, marital status and age at start of relationship of the partner. For the fourth edition (March 2021), both data files have been updated to include partnership data from the latest BCS70 data sweep (2016). Following Sweep 10 (2016, age 46), longitudinal datasets have been streamlined by removing cases which have never participated in any main sweep survey and are no longer being issued.

Political scientists often argue that political processes move together in the long run. Examples include partisanship and government approval, conflict and cooperation among countries, public policy sentiment and policy activity, economic evaluations and economic conditions, and taxing and spending. Error correction models and cointegrating relationships are often used to characterize these equilibrium relationships and to test hypotheses about political change. Typically the techniques used to estimate equilibrium relationships are based on the statistical assumption that the processes have permanent memory, implying that political experiences cumulate. Yet many analysts have argued that this is not a reasonable theoretical or statistical assumption for most political time series. In this paper I examine the consequences of assuming permanent memory when data have long but not permanent memory. I focus on two commonly used estimators: the Engle–Granger two-step estimator and generalized error correction. In my analysis I consider the important role of simultaneity and discuss implications for the conclusions political scientists have drawn about the nature, even the existence, of equilibrium relationships between political processes. I find that even small violations of the permanent memory assumption can present substantial problems for inference on long-run relationships in situations that are likely to be common in applied work in all fields and suggest ways that analysts should proceed.

Archaeologists and researchers in allied fields have long sought to understand human colonization of North America. When, how, and from where did people migrate, and what were the consequences of their arrival for the established fauna and landscape are enduring questions. Here, we present evidence from excavated surfaces of in situ human footprints from White Sands National Park (New Mexico, USA), where multiple human footprints are stratigraphically constrained and bracketed by seed layers that yield calibrated 14C ages between ~23 and 21 ka. These findings confirm the presence of humans in North America during the Last Glacial Maximum, adding evidence to the antiquity of human colonization of the Americas and providing a temporal range extension for the coexistence of early inhabitants and Pleistocene megafauna.

The owner-dog relationship is a critical component of sustained dog ownership. Increased understanding of risk factors for weak owner-dog relationships can identify owner-dog dyads at higher risk of poor welfare outcomes, including dog relinquishment and euthanasia. The internationally documented boom in puppy acquisition during the COVID-19 pandemic led to welfare concerns for this cohort of dogs, including impulsive purchasing of puppies to unsuitable homes, increased supply of puppies from poor-welfare sources, and deficits in early-life experiences for puppies. Combined, these changes were feared to lead to problem behaviours, weak owner-dog relationships and increased future relinquishment in this uniquely vulnerable generation. The Pandemic Puppies project longitudinally studied dogs bought as puppies aged < 16-weeks old during the 2020 phase of the COVID-19 pandemic by collecting owner-completed data during puppyhood and as adults. This study aimed to investigate factors associated with the owner-dog relationship in early-adulthood via a cross-sectional analysis of a subset of Pandemic Puppies data (n = 794). When dogs were 21-months old owners completed the Monash Dog-Owner Relationship Scale (MDORS), from which the Perceived Emotional Closeness (Closeness) and Perceived Costs subscales were established as reliable in this sample and were used as outcome variables in multivariable analyses to explore risk factors such as health, behaviour, and acquisition-related variables. Problem behaviours, including those related to lack of control, fear, separation, and aggression were the predominant risk factors associated with increased Perceived Costs score. The presence of most problem behaviours was not associated with reduced Closeness, suggesting a potential source of emotional conflict for owners. However, owners of dogs showing aggressive behaviours had lower Closeness scores. Puppy acquisitions explicitly motivated by the pandemic were associated with increased Perceived Costs. Support interventions targeted at owners of dogs with problem behaviours are of high importance if positive owner-dog relationships are to be maintained.

Persons 18 to 49 years who have had sexual relationships at some time in their life by sex, number of days they have been drunk in the last month and use of condom in last sexual relationship. National.