Racial/ethnic diversity has become an increasingly important variable in the social sciences. Research from multiple disciplines consistently demonstrates the tremendous impact of ethnic diversity on individuals and organizations. Investigators use a variety of measures, and their choices can affect the conclusions that can be drawn and limit the ability to compare and generalize results across studies effectively. The current article reviews 3 popular approaches to the measurement of diversity: the simplistic majority-minority approach and 2 multiple categories variants, the generalized variance and the lesser used entropy statistic. We discuss the properties of each approach and reject the majority-minority approach. We provide 5 examples using the generalized variance and entropy statistics and illustrate their versatility and flexibility. We urge investigators to adopt these multicategory measures and to use our discussion to determine which measure of diversity is most appropriate given the nature of one's data set and research question.

The majority of women who enter the criminal justice system, most of whom are poor and women of color, have suffered from significant lifetime trauma exposure that can lead to posttraumatic stress disorder (PTSD). It is essential to identify the prevalence of PTSD among this population in order to identify treatment needs. Most studies on PTSD among incarcerated women have focused on PTSD in jailed populations, including women awaiting trial. Using a cross-sectional study design, we estimated the prevalence of PTSD and comorbid physical and mental health conditions in 387 incarcerated women sentenced to a maximum-security prison in the United States. Almost half (44%) of our sample met the diagnostic criteria for PTSD. Women with moderate to severe PTSD symptoms were more likely to report several comorbid physical and mental health conditions than were women without PTSD. Women with the most severe symptoms were most likely to report receiving mental health treatment in prison; women with moderate to severe symptoms were less likely to report receiving similar mental health care. Our findings add support to the link between PTSD and comorbid physical and mental health conditions and suggest that many women with PTSD are not receiving mental health treatment that is likely to benefit them. Because prison has become the mental health safety net for some of the nation's most vulnerable women, it is imperative that prisons provide evidence-based PTSD treatment during incarceration.

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The background of this article is that assessment and quantification of skin color is important to health care; color is one indicator of overall health and is linked to oxygenation, tissue perfusion, nutritional status, and injury. The purpose is to describe how skin color varies across racial/ethnic groups so that the information can be applied to clinical practice. The method used is cross-sectional, descriptive design (n = 257). We recorded self-defined race/ethnicity and used a spectrophotometer to measure skin color at two anatomic sites. Skin color variables included L* (light/dark), a* (red/green), and b* (yellow/blue). As regards results, we found significant differences in L*, a*, and b* values by site and race/ethnicity in White, Asian, and Biracial participants. L*: F(3, 233) = 139.04, p < .01 and F(3, 233) = 118.47, p < .01. Black participants had significantly lower mean L* values and wider ranges of L*, a*, and b* as compared with other groups. In regard to application, these findings suggest that clinicians and researchers should plan and provide care based on skin color, rather than race/ethnicity.

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