| 1. |
- Bouwmeester, Sjoerd, et al.
(författare)
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Registered Replication Report : Rand, Greene, and Nowak (2012)
- 2017
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Ingår i: Perspectives on Psychological Science. - : SAGE Publications. - 1745-6916 .- 1745-6924. ; 12:3, s. 527-542
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Tidskriftsartikel (refereegranskat)abstract
- In an anonymous 4-person economic game, participants contributed more money to a common project (i.e., cooperated) when required to decide quickly than when forced to delay their decision (Rand, Greene & Nowak, 2012), a pattern consistent with the social heuristics hypothesis proposed by Rand and colleagues. The results of studies using time pressure have been mixed, with some replication attempts observing similar patterns (e.g., Rand et al., 2014) and others observing null effects (e.g., Tinghög et al., 2013; Verkoeijen & Bouwmeester, 2014). This Registered Replication Report (RRR) assessed the size and variability of the effect of time pressure on cooperative decisions by combining 21 separate, preregistered replications of the critical conditions from Study 7 of the original article (Rand et al., 2012). The primary planned analysis used data from all participants who were randomly assigned to conditions and who met the protocol inclusion criteria (an intent-to-treat approach that included the 65.9% of participants in the time-pressure condition and 7.5% in the forced-delay condition who did not adhere to the time constraints), and we observed a difference in contributions of −0.37 percentage points compared with an 8.6 percentage point difference calculated from the original data. Analyzing the data as the original article did, including data only for participants who complied with the time constraints, the RRR observed a 10.37 percentage point difference in contributions compared with a 15.31 percentage point difference in the original study. In combination, the results of the intent-to-treat analysis and the compliant-only analysis are consistent with the presence of selection biases and the absence of a causal effect of time pressure on cooperation.
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| 2. |
- Chudnovskaya, Margarita, 1990-
(författare)
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Higher education and family formation : A story of Swedish educational expansion
- 2017
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The subject of this dissertation is trends in family formation among highly educated men and women in Sweden. The highly educated have typically differed from other educational groups in their patterns of childbearing. This has particularly beenthe case for highly educated women, who used to be in the minority among the highly educated and who were much more likely to be childless than other women. The goal of this dissertation is to understand how the expansion of higher education has transformed the formation of childbearing unions among the highly educated group. The context for the dissertation is the dramatic expansion of higher education which has occurred in Sweden over the last half century. As the share of cohorts graduating from post-secondary education has grown, diversity among the highly educated has also increased. This dissertation draws upon rich Swedish administrative register data to answer questions about changes in the behavior of the highly educated group, as well as emerging stratification within the group. This dissertation consists of five studies and an introductory chapter.In Study 1, we examine changes in geographical distances between young couples and their parents. We find that among younger cohorts, generations live further apart. The expansion of higher education contributes to these distances, though the introduction of regional colleges has mediated the impact of educational expansion to some extent. In Study 2, we consider how effective colleges are as partner markets. We follow one birth cohort (1970), and examine the likelihood that they form a childbearing union with someone who attended the same university at the same time. We find that colleges are an important potential meeting place for childbearing partners, and examine how the likelihood of partnering with a fellow student is related to the college composition.In Study 3, I assess changes in partner choice among the highly educated, by comparing the likelihood that highlyeducated men and women born in 1940-2, 1950-2, 1960-2, and 1970-2 form a childbearing union, and whether they doso with a highly or a lower educated partner. I find that female graduates are much more likely to enter unions, and to“partner down”. Men’s likelihood of forming a childbearing union hasn’t changed across cohorts, but men from later cohorts are much more likely to find a highly educated partner than men from earlier cohorts. I show that partnership outcomes for graduates are related to social class background, university experience (degree length and institution type), and post-graduation income. In Study 4, we study unions with at least one highly educated partner, including men and women born in 1950-2, 1960-2, 1970-2, and 1980-2. We examine the extent to which educational (in)equality is mirrored in other measures of status such as social class background, income, and occupational prestige. We conclude that although the number of women “partnering down” in terms of education has increased dramatically, these unions are not necessarily characterized by female status-dominance more generally. In Study 5, I focus on highly educated men who do not form any childbearing union, studying men born in the years 1945-1974. I find that the consistent levels of childlessness among highly educated men may best be explained by changes in the composition of graduates in terms of field of study and post-graduation income.
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| 3. |
- Graham, Jesse R., et al.
(författare)
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The pipeline project: Pre-publication independent replications of a single laboratory's research pipeline
- 2016
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Ingår i: Journal of Experimental Social Psychology. - : Elsevier. - 1096-0465 .- 0022-1031. ; 66, s. 55-67
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Tidskriftsartikel (refereegranskat)abstract
- This crowdsourced project introduces a collaborative approach to improving the reproducibility of scientific research, in which findings are replicated in qualified independent laboratories before (rather than after) they are published. Our goal is to establish a non-adversarial replication process with highly informative final results. To illustrate the Pre-Publication Independent Replication (PPIR) approach, 25 research groups conducted replications of all ten moral judgment effects which the last author and his collaborators had “in the pipeline” as of August 2014. Six findings replicated according to all replication criteria, one finding replicated but with a significantly smaller effect size than the original, one finding replicated consistently in the original culture but not outside of it, and two findings failed to find support. In total, 40% of the original findings failed at least one major replication criterion. Potential ways to implement and incentivize pre-publication independent replication on a large scale are discussed.
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| 5. |
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| 6. |
- Van Bavel, Jan, et al.
(författare)
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Seeding the gender revolution : Women’s education and cohort fertility among the baby boom generations
- 2018
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Ingår i: Population Studies. - : Routledge. - 0032-4728 .- 1477-4747. ; 72:3, s. 283-304
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Tidskriftsartikel (refereegranskat)abstract
- In Europe and the United States, women’s educational attainment started to increase around the middle of the twentieth century. The expected implication was fertility decline and postponement, whereas in fact the opposite occurred. We analyse trends in the quantum of cohort fertility among the baby boom generations in 15 countries and how these relate to women’s education. Over the 1901–45 cohorts, the proportion of parents with exactly two children rose steadily and homogeneity in family sizes increased. Progression to a third child and beyond declined in all the countries, continuing the ongoing trends of the fertility transition. In countries with a baby boom, and especially among women with post-primary education, this was compensated for by decreasing childlessness and increasing progression to a second child. These changes, linked to earlier stages of the fertility transition, laid the foundations for later fertility patterns associated with the gender revolution.
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| 7. |
- Van Bavel, Jan, et al.
(författare)
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Women's Education and Cohort Fertility during the Baby Boom
- 2015
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Ingår i: Annual Meeting of the Population Association of America 2015. - San Diego.
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Konferensbidrag (refereegranskat)abstract
- While today, women exceed men in terms of participation in advanced education, female enrollment rates beyond primary education were still very low in the first half of the 20th century. In many Western countries, this started to change around mid-century, with the proportion of women obtaining a degree in secondary education and beyond increasing steadily. The expected implication of rising female education was fertility decline andthepostponement of motherhood. Yet, many countries experienced declining ages at first birth and increasing total fertility instead. How can we reconcile these fertility trends with women’s increasing participation in education? Using census and large survey data for the USA and fourteen European countries, this paper analyzes trends in cohort fertility underlying the Baby Boom and how they relate to women’s educational attainment. The focus is on quantum components of cohort fertility and parity progression, and their association with the age at first childbearing. We find that progression to higher parities continued to decline in all countries, in line with fertility transition trends that started back in the nineteenth century. However, in countries experiencing a Baby Boom, this was more than compensated by decreasing childlessness and parity progression after the first child, particularly among women with education beyond the primary level. As a result, the proportions having exactly two children went up steadily in all countries and all educational groups.
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| 8. |
- Washburn, Anthony N., et al.
(författare)
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Data from a pre-publication independent replication initiative examining ten moral judgement effects
- 2016
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Ingår i: Scientific Data. - : Nature Research (part of Springer Nature): Fully open access journals / Nature Publishing Group. - 2052-4463. ; 3
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Tidskriftsartikel (refereegranskat)abstract
- We present the data from a crowdsourced project seeking to replicate findings in independent laboratories before (rather than after) they are published. In this Pre-Publication Independent Replication (PPIR) initiative, 25 research groups attempted to replicate 10 moral judgment effects from a single laboratory's research pipeline of unpublished findings. The 10 effects were investigated using online/lab surveys containing psychological manipulations (vignettes) followed by questionnaires.
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