CLS Working paper series

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Improving between-wave mailings on longitudinal surveys: A randomised experiment on the UK Millennium Cohort Study

Author:   Calderwood, L.


CLS Working Paper 2012/4 This working paper reports the results from a randomised experiment to improve the effectiveness of the between-wave mailings on the Millennium Cohort Study, particularly among groups with higher attrition rates: lower-educated sample members and minority ethnic groups.

Date published:   31/07/2012

Date posted:   31/07/2012

Assessing recall of early life circumstances: Evidence from the National Child Development Study

Author:   Brown, M.


CLS Working Paper 2012/3 This working paper assesses the accuracy with which adults can recall aspects of their childhood by comparing information reported at age 50 with the data captured at age 11. This evidence can be used to inform decisions about the validity of including retrospective questions in other surveys.

Date published:   26/07/2012

Date posted:   26/07/2012

Persistent poverty and children's cognitive development: Evidence from the Millennium Cohort Study

Author:   Dickerson, A Popli, G


CLS Working Paper 2012/2 Using data from the UK Millennium Cohort Study, the authors document the impact that poverty, and in particular persistent poverty, has on their cognitive development in their early years. Using both regression-based seemingly unrelated regressions estimation (SURE) and structural equation modelling (SEM), we show that children born into poverty have significantly lower test scores at ages 3, 5 and 7, and that continually living in poverty in their early years has a cumulative negative impact on their cognitive development.

Date published:   13/06/2012

Date posted:   13/06/2012

Multiple risk factors in young children's development

Author:   Shirley Dex and Ricardo Sabates


CLS Working Paper 2012/1. This paper quantifies the prevalence of multiple risks for families with very young children in the UK, and their prevalence by ethnic groups. It also examines the associations of multiple risks to deficits in developmental outcomes at three and five years of age for children born in 2000 to 2001.

Date published:   07/02/2012

Date posted:   07/02/2012

The design and content of the HALCyon qualitative study: A qualitative sub-study of the National Study of Health and Development and the Hertfordshire Cohort Study

Author:   Jane Elliott, Catharine Gale, Diana Kuh and Sam Parsons


CLS Working Paper 2011/5. This paper provides an overview of the design of a qualitative sub-study of 30 members of the 1946 National Survey of Health and Development and 30 members of the older Hertfordshire Cohort Study, who were born between 1931 and 1939. Interviews were carried out as part of the Healthy Ageing across the Life Course (HALCyon) collaborative research programme . The central objective was to use qualitative in-depth biographical interviews to help understand how an individual’s self-reported physical capability impacts on their health, wellbeing and social interaction. In this paper, we focus on the content of the interview topic guide, our sampling strategy and on the characteristics of the sample that was achieved in comparison with the overall survey population.

Date published:   19/10/2011

Date posted:   19/10/2011

An ethical review of the use of functional MRI

Author:   Martin Richards


CLS Working Paper 2011/4. This review concerns two areas of research practice that raise significant ethical issues and that have been the subject of much controversy. The first part concerns magnetic resonance imaging (MRI) and, in particular, the fraught issue of feedback of incidental findings to research participants. The second part concerns the analysis of research participants’ DNA. The review used a lifecourse approach, which included a pilot study involving a small subgroup of members of the 1958 National Child Development Study.

Date published:   15/08/2011

Date posted:   15/08/2011

Unequal entry to motherhood and unequal outcomes for children: Evidence from the UK Millennium Cohort

Author:   Denise Hawkes and Heather Joshi


CLS Working Paper 2011/3. The age of mothers when they give birth to their first child is increasingly socially polarised in the UK. This paper compares the development of children from young and older mothers, in terms of cognition and behaviour at age five, using the Millennium Cohort. Much of the difference is attributable either to the mothers’ social origins or inequalities. The developmental penalty left to be attributed to the mother’s age is, at most, modest.

Date published:   28/07/2011

Date posted:   28/07/2011

Part-time working and pay amongst Millennium Cohort Study mothers

Author:   Jenny Neuburger, Heather Joshi and Shirley Dex


CLS Working Paper 2011/2. This paper investigates new evidence from the Millennium Cohort Study on the ’part-time penalty’: i.e. the lower rates of hourly pay offered in part-time jobs rather than full-time jobs to equivalently qualified and experienced women. The new finding is that mothers who managed to take advantage of new opportunities to reduce hours in their existing jobs, without changing employer, seem to have escaped the more severe hourly pay consequences of part-time working. This paper supersedes GeNet Working Paper No.38, February 2010, which carried the same title.

Date published:   16/02/2011

Date posted:   16/02/2011

Does how you measure income make a difference to measuring poverty?

Author:   Kirstine Hansen and Dylan Kneale


CLS Working Paper 2011/1. This paper examines differences in how income is collected in a nationally representative birth cohort, the Millennium Cohort Study, looking at variations by questions asked and by respondent characteristics before then examining the implications different methods of collecting and reporting income may have for measuring poverty.

Date published:   17/01/2011

Date posted:   17/01/2011

Investigating individual differences in memory and cognition in the National Child Development Study cohort members using a life course approach

Author:   Helen M. Knight, Matt Brown, Brian Dodgeon, Barbara Maughan, Martin Richards, Jane Elliott, Barbara Sahakian and Trevor Robbins


CLS Working Paper 2010/10. This paper details the results of a pilot study applying a battery of cognitive tests to NCDS members in the Cambridge area, to examine the hypothesis that cognitive decline in middle age may be a predictor of early-stage Alzheimer's disease. The project employed a lifecourse approach by comparing cognitive test results at age 11 with those at age 50 in order to select the three test groups.

Date published:   09/12/2010

Date posted:   09/12/2010