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Sökning: WFRF:(Lersch Philipp M.)

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1.
  • Breznau, Nate, et al. (författare)
  • Observing many researchers using the same data and hypothesis reveals a hidden universe of uncertainty
  • 2022
  • Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 119:44
  • Tidskriftsartikel (refereegranskat)abstract
    • This study explores how researchers analytical choices affect the reliability of scientific findings. Most discussions of reliability problems in science focus on systematic biases. We broaden the lens to emphasize the idiosyncrasy of conscious and unconscious decisions that researchers make during data analysis. We coordinated 161 researchers in 73 research teams and observed their research decisions as they used the same data to independently test the same prominent social science hypothesis: that greater immigration reduces support for social policies among the public. In this typical case of social science research, research teams reported both widely diverging numerical findings and substantive conclusions despite identical start conditions. Researchers expertise, prior beliefs, and expectations barely predict the wide variation in research outcomes. More than 95% of the total variance in numerical results remains unexplained even after qualitative coding of all identifiable decisions in each teams workflow. This reveals a universe of uncertainty that remains hidden when considering a single study in isolation. The idiosyncratic nature of how researchers results and conclusions varied is a previously underappreciated explanation for why many scientific hypotheses remain contested. These results call for greater epistemic humility and clarity in reporting scientific findings.
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2.
  • Vidal, Sergi, et al. (författare)
  • Family migration in a cross-national perspective: The importance of within-couple employment arrangements in Australia, Britain, Germany, and Sweden
  • 2017
  • Ingår i: Demographic Research. - : MAX PLANCK INST DEMOGRAPHIC RESEARCH. - 1435-9871. ; 36, s. 307-338
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE Migration rates of dual-earner couples are lower than those of male-breadwinner couples. We revisit this issue using a cross-national comparative perspective and examine heterogeneity in the role of female employment in couple relocations. We propose a theoretical framework in which national levels of support for female employment and normative expectations about gender roles act as moderators of the relationship between couple type (i.e., dual-earner and male-breadwinner) and family migration. METHODS We deploy discrete-time event history analyses of harmonised longitudinal data from four large-scale datasets from Australia, Britain, Germany, and Sweden, covering the 1992-2011 period. RESULTS Consistent with prior research, we find that male-breadwinner couples migrate more often than dual-earner couples in all countries, suggesting that traditional gender structures affecting family migration operate across very different contexts. We also find cross-country differences in the estimated effects of different sorts of absolute and relative partner resources on family migration. CONCLUSIONS We take our results as preliminary evidence that national contexts can serve as moderators of the relationship between within-couple employment arrangements and family migration decisions. CONTRIBUTION Our study contributes to family migration literature by illustrating how cross-national comparisons are a valuable methodological approach to put prevailing micro-level explanations of the relationship between female employment and family migration in context.
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