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81.
Despite the renewed interest in the use of experimental designs in the fields of leadership and management over the past few decades, these designs are still relatively underutilized. Although there are several potential reasons for this, chief among them is misunderstanding the value of these designs. The purpose of this article is to review the role of laboratory, field, and quasi-experimental designs in management and leadership research. We first discuss the primary goals of experimental studies. Next, we examine the characteristics of experimental designs and how to distinguish laboratory, field, and quasi-experiments from one another and from non-experimental studies. Following these discussions, we provide examples of each type of experimental design and discuss their relative strengths and limitations. Finally, we discuss steps that researchers can take to increase the probability of having articles reporting experiments accepted by leadership and management journals. 相似文献
82.
83.
Bedsores (ulcers) are caused by multiple factors which include, but are not limited to; pressure, shear force, friction, temperature, age and medication. Specialised support services, such as specialised mattresses, sheepskin coverings etc., are thought to decrease or relieve pressure, resulting in a lowering of pressure ulcer incidence [3]. The primary aim of this study was to compare the upper/central body pressure distribution between normal lying in a hospital bed versus the use of a pressure redistribution belt. The study involved 16 healthy voluntary subjects lying on a hospital bed with and without wearing the belt. Results showed that the use of a pressure redistribution belt results in reduced pressure peaks and prevents the pressure from increasing over time. 相似文献
84.
Access to resources and social relationships are important for teacher development. Unfortunately, within higher education contingent faculty often are under resourced and poorly integrated into their department’s social network. This shortfall could be addressed by Open Educational Resources (OERs), which are websites that freely distribute pedagogical resources and provide a platform for educators to form collegial relationships. The current research focuses on the OERs that have formed around American sociology to assess the characteristics of the faculty who use them, the pedagogical resources they acquire from them, and how often their users form collegial relationships online. Analysis of an online survey of 275 sociology OER users finds that contingent faculty are acquiring resources from the sites. While only a small percentage of faculty are forming collegial relationships via these sites, they are doing so without occupational status, gender, or racial differences. 相似文献
85.
Brian J. Willoughby Bonnie Young-Petersen Nathan D. Leonhardt 《Journal of sex research》2018,55(3):297-309
While the scholarly literature on pornography use is growing, much of this literature has examined pornography use as a static feature that does not change. Despite this trend, pornography use, like most sexual behaviors, is likely best viewed as a dynamic feature that may shift across the developmental life span. Using a sample of 908 adults from the United States, retrospective data on pornography use through adolescence and emerging adulthood were gathered to explore trajectories of pornography use across these developmental periods. Latent mixture models suggested the presence of common patterns of use across both developmental periods. Adolescence patterns appeared to largely be distinguished by those who either engaged or did not engage with pornography, while emerging adulthood data revealed the presence of a group of experimenters who engaged in pornography through adolescence but then decreased use through their 20s. Men were found to be more likely to have consistent profiles of pornography use, while single adults were likely to have delayed entry into pornography use. Associations with adult mental health and pornography use were found, suggesting that early exposure to pornography was related to elevated current pornography use patterns and, to a lesser extent, dysfunctional pornography use. Trajectories also had a weak association with life satisfaction, with individuals reporting trajectories involving consistent pornography use reporting lower life satisfaction after controls. 相似文献
86.
Spatial statistics has a rich tradition in earth, economic, and epidemiological sciences and has potential to affect the study of couples as well. When applied to couple data, spatial statistics can model within‐ and between‐couple differences with results that are readily accessible for researchers and clinicians. This article offers a primer in using spatial statistics as a methodological tool for analyzing dyadic data. The article will introduce spatial approaches, review data structure required for spatial analysis, available software, and examples of data output. 相似文献
87.
Nathan H. Field Elizabeth A. Nick Maya Massing-Schaffer Kara A. Fox Jacqueline Nesi Mitchell J. Prinstein 《Journal of research on adolescence》2024,34(1):114-126
This study examined linear and curvilinear longitudinal associations between peer status (i.e., likeability and popularity) and socioevaluative concern, a socio-cognitive feature characterized by attunement to judgment from peers. A sample of 716 adolescents (Mage = 16.01, SD = 1.25; 54% female; 46.5% White; 69.5% reduced-price lunch) was assessed twice annually. Likeability and popularity were assessed with peer nominations at Time 1. Measures of general (rejection sensitivity, peer importance) and online (digital status seeking, online status importance) socioevaluative concern were obtained at Times 1 and 2. High and low levels of likeability were longitudinally associated with increased peer importance, while high and low levels of popularity were associated with increased digital status seeking, and decreased online status importance for girls. 相似文献
88.
Nathan L. Linsk 《International Journal of Sexuality and Gender Studies》1997,2(3-4):285-308
Although HIV/AIDS definitely impacts gay and bisexual men of all ages, the impact on people in their later years has not been actively investigated. This exploratory study obtained detailed narratives from 14 adults between the ages of 51-72, all of whom were infected with HIV. Ten of the participants were potentially infected through male to male sexual contact. The subjects reported living with HIV for substantial periods with an average of 13 years of life since diagnosis, estimating a duration of HIV seropositivity from 1-20 years. Most had significant health problems, which may be related to aging, in addition to a number of HIV-related symptoms. They expressed community identification as people living with HIV; some were highly identified as gay men, while other were closeted or in denial regarding their same-sex activity. Half felt to some extent bisexual, and described relationships with wives or other women. Although many participants maintained active social lives, others expressed feelings of loneliness and isolation. This group was minimally active sexually and several of the participants expressed reservations about safer sex, especially condom usage. A strong theme was the sense of having lived a full life, which may help the individual cope with his diagnosis. The findings suggest the need to examine the diversity among older gay and bisexual men living with HIV, how these experiences vary by race and ethnicity, and identification of issues related to prevention and services. 相似文献
89.
Gad Yair 《The Sociological review》2008,56(3):388-407
This paper argues that the French Revolution constituted the basic metaphor through which Pierre Bourdieu perceived and analyzed gender hierarchies; that the class structure of the ancien régime and the mechanisms of its legitimation were the major metaphors he used through his scathing critiques on the order of the sexes; and that the ideals of liberté , égalité and fraternité were always his reformatory aims for a just, gender-neutral society. The paper shows how this preoccupation with the Revolution of 1789 structured Bourdieu's analysis of gender relations and sexual identities in contemporary society. It exposes the ways in which he identified men with the nobility and women with the third estate; it presents his analyses of the role that traditional ideologies and state bureaucracies play in legitimating this arbitrary order of masculine domination; and it analyzes his proposals for a sexual revolution while exposing the counter-revolutionary forces that persistently negate attempts to reform gender hierarchies. Fundamentally, this new reading of Bourdieu's exegeses on gender suggests that he was working with a ready-made interpretive scheme, a model of society that he was inclined to see as always reproducing itself: the ancien régime . 相似文献
90.