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11.
Daniel J. Benjamin 《The American statistician》2019,73(1):186-191
ABSTRACTResearchers commonly use p-values to answer the question: How strongly does the evidence favor the alternative hypothesis relative to the null hypothesis? p-Values themselves do not directly answer this question and are often misinterpreted in ways that lead to overstating the evidence against the null hypothesis. Even in the “post p?<?0.05 era,” however, it is quite possible that p-values will continue to be widely reported and used to assess the strength of evidence (if for no other reason than the widespread availability and use of statistical software that routinely produces p-values and thereby implicitly advocates for their use). If so, the potential for misinterpretation will persist. In this article, we recommend three practices that would help researchers more accurately interpret p-values. Each of the three recommended practices involves interpreting p-values in light of their corresponding “Bayes factor bound,” which is the largest odds in favor of the alternative hypothesis relative to the null hypothesis that is consistent with the observed data. The Bayes factor bound generally indicates that a given p-value provides weaker evidence against the null hypothesis than typically assumed. We therefore believe that our recommendations can guard against some of the most harmful p-value misinterpretations. In research communities that are deeply attached to reliance on “p?<?0.05,” our recommendations will serve as initial steps away from this attachment. We emphasize that our recommendations are intended merely as initial, temporary steps and that many further steps will need to be taken to reach the ultimate destination: a holistic interpretation of statistical evidence that fully conforms to the principles laid out in the ASA statement on statistical significance and p-values. 相似文献
12.
Benjamin Laumen 《Statistics》2019,53(3):569-600
In this paper, we revisit the progressive Type-I censoring scheme as it has originally been introduced by Cohen [Progressively censored samples in life testing. Technometrics. 1963;5(3):327–339]. In fact, original progressive Type-I censoring proceeds as progressive Type-II censoring but with fixed censoring times instead of failure time based censoring times. Apparently, a time truncation has been added to this censoring scheme by interpreting the final censoring time as a termination time. Therefore, not much work has been done on Cohens's original progressive censoring scheme with fixed censoring times. Thus, we discuss distributional results for this scheme and establish exact distributional results in likelihood inference for exponentially distributed lifetimes. In particular, we obtain the exact distribution of the maximum likelihood estimator (MLE). Further, the stochastic monotonicity of the MLE is verified in order to construct exact confidence intervals for both the scale parameter and the reliability. 相似文献
13.
Viral videos offer contemporary activists a nimble, provocative tool with which to disseminate humanitarian messages. This article historicizes anti-trafficking video media that imagine a new potential with which to alter behavioral norms around cocoa and chocolate. The article engages theories and approaches to historical and contemporary modalities of naming and shaming, spanning three centuries to the present day. Videos are examined for style, format, and content, with the view to describing a ‘blood chocolate’ visual and textual metonymy. Recurring themes include transnational power, corporate responsibility, and the horrific scale of exploitation. But viral videos also appear deeply influenced by neoliberal economics that celebrate lawful enterprise and promote consumer-driven solutions to exploitative child labor. 相似文献
14.
Ervin Prifti Elisenda Estruch Silvio Daidone Benjamin Davis 《Journal of Policy Modeling》2019,41(1):179-196
Cash transfer programs pursue mainly protective objectives, but can also impact rural livelihoods by inducing investments in productive activities and changing household labor allocation. We adopt a continuous treatment approach to quantify how households’ labor supply responds to transfer size. We find a shift from paid labor to own farm labor and find that the transfer size is well within a level that would have disincentive effects on time spent on own farm activities. The switch from paid to own farm labor occurs at lower levels of transfers for labor-constrained households, and at higher levels for non-labor constrained households. 相似文献
15.
Samantha L. Hardesty Phillip M. Orchowitz Lynn G. Bowman 《Journal of Organizational Behavior Management》2018,38(4):345-353
The purpose of the current study was to assess staff preference for how data were displayed on graphs. Specifically, preference for line versus bar graphs was assessed, as well as preference for data displayed as one date in time versus multiple dates showing performance trends. A secondary purpose of the study was to assess staff comprehension of the data presented across different graphic displays. Participants included 60 entry-level direct care staff and 25 seasoned therapists. Therapists had more advanced training in applied behavior analysis than the direct care staff. The vast majority of direct care staff preferred data depicted as a bar graph versus data depicted as a line graph, even preferring a single bar graph over a time-series line graph. The therapists preferred time-series line graphs to bar graphs. Most staff demonstrated understanding of the data, regardless of how it was depicted. 相似文献
16.
This article investigates how the social media site Reddit hindered the collective action efforts stemming from the Gamergate controversy. Using forum posts from two time-points, one early in the movement and another six months later, this work describes how the Reddit platform impeded movement efforts over time. More specifically, we examine how the nature of Reddit discussions created barriers to each of three key movement processes: narrative construction of collective identity, framing, and boundary work. We argue that unlike social media platforms such as Facebook, some sites–Reddit in this case–may negatively impact movement success depending on its structure. We also discuss the importance of differing ICT structures and implications for online interactions more generally. 相似文献
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18.
Native Friends and Host Country Identification among Adolescent Immigrants in Germany: The Role of Ethnic Boundaries 下载免费PDF全文
Many studies find that high shares of native friends are positively related to immigrant youths' identification with the host country. By examining various immigrant groups together, these studies imply that having native friends matters in the same way for the national identification in different immigrant groups. In contrast, we argue that the extent to which having native friends affects immigrants' national identification depends on both immigrant group characteristics and the receiving context, especially on ethnic boundaries and related group differences in perceived discrimination and the compatibility of ethnic and national identities. Analyses based on data from the National Educational Panel Study in Germany that are representative of 15‐year‐old adolescents in secondary schools indeed reveal pronounced group differences: While national identification of ethnic German repatriates as well as of adolescents of former Yugoslavian and Southern European origin is related to the share of native friends, as hypothesized, we do not find this association for immigrants of Turkish and Polish origin. Our finding underlines the importance of theoretically as well as empirically accounting for group differences. 相似文献
19.
Using a Verbal Analysis of Lady Gaga’s Applause as a Classroom Exercise for Teaching Verbal Behavior
The Analysis of Verbal Behavior - Learning Skinner’s (1957) verbal behavior taxonomy requires extensive study and practice. Thus, novel classroom exercises might serve this goal. The present... 相似文献
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