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Browsing Sociology Working Papers by Author "Halpin, Brendan"

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Browsing Sociology Working Papers by Author "Halpin, Brendan"

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  • Halpin, Brendan; Hill, John (Combat Poverty Agency, 2008)
    Active Labour Market Policies (ALMPs), which provide training and subsidised employment to the unemployed, are an important part of Ireland’s welfare state. While a good deal of existing research is concerned with the ...
  • O'Regan, Philip; Halpin, Brendan (Department of Sociology, University of Limerick, 2011)
    Drawing primarily on data from the 1911 Irish Census, and adopting a specifically Weberian focus, this paper investigates the separate explanatory power of class and status in the stratification of outcomes. Specifically ...
  • Halpin, Brendan (Department of Sociology; University of Limerick, 2016)
    Analysts doing cluster analysis sometimes want the data to tell them the optimum number of clusters. Common "stopping rules" use the Calinski-Harabasz pseudo-F statistic and Duda-Hart indices, which are based on squared ...
  • Halpin, Brendan; O'Donoghue, Cathal (Department of Sociology, University of Limerick, 2004)
    Cohabitation has grown strongly in Ireland over the last decade. We use large-scale surveys to characterise its extent and nature. We find it has almost tripled in incidence between 1994 and 2002. It is associated with ...
  • Halpin, Brendan (Department of Sociology, University of Limerick, 2013)
    In a previous paper (Halpin, 2012) (downloadable) I have described a strategy for multiple imputation for missing data in sequence data (that is, in categorical time series), where missingness tends to be consecutive and ...
  • Halpin, Brendan (Department of Sociology: University of Limerick, 2015)
    The MICT package provides a method for multiple imputation for categorical time-series data such as lifecourse or employment-status histories that preserves longitudinal consistency, using a monotonic series of ...
  • Halpin, Brendan (Department of Sociology, University of Limerick, 2012)
    As holistic analysis of life-course sequences becomes more common, using optimal matching (OM) and other approaches the problem of missing data becomes more serious. Longitudinal data is prone to missingness in ways that ...
  • Halpin, Brendan (Department of Sociology, University of Limerick, 2008)
    The Optimal Matching Algorithm is widely used for sequenace analysis in sociology. It has a natural interpretation for discrete-time sequences, but is also widely used for life history data, which is continuous in time. ...
  • Halpin, Brendan (Department of Sociology, University of Limerick, 2014)
    SADI is a suite of Stata tools for sequence analysis, with a particular focus on holistic comparisons of sequences using measures such as optimal matching distance. It provides a number of distance measures, including • ...
  • Halpin, Brendan (Department of Sociology, University of Limerick, 2012)
    no abstract available
  • Halpin, Brendan (Department of Sociology, University of Limerick, 2011)
    Simple modelling of categorical data is not as simple as it seems. Standard formulas taught to generations of undergraduates are shown to be sub-optimal, simple models are widely misunderstood, and high levels of controversy ...
  • Halpin, Brendan (Department of Sociology, University of Limerick, 2013)
    no abstract available
  • Halpin, Brendan (Department of Sociology, University of Limerick, 2003)
    In the social and economic sciences it appears that there was a pioneering enthusiasm for longitudinal data in the late 1960s and early 1970s, resulting inter alia in the US Panel Study on Income Dynamics (1968) and ...

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