III. RESEARCH RELATED ISSUES
b. LITERATURE REVIEW AND ARTICLE CRITIQUE
Among scholars who have analyzed the underrepresentation of women and people of color (and, in a few instances, women of color) in science, technology, engineering, and math (STEM) disciplines, a clear distinction can be made between literature on the pipeline to careers in the sciences and critically-oriented literature that acknowledges the ways that women of color are systematically excluded and marginalized in the sciences. Research based on pipeline assumptions views the problem as one of inequitable access to resources and an inadequate supply of scholars from historically oppressed groups, whereas the small, critically-oriented literature views the problem as inherent in the pipeline itself and in the use of the pipeline metaphor. These latter scholars contend that the process of becoming a scientist was developed by and for white males, and that the power structure established in the sciences since the mid 19th century (i.e., in research universities) systematically excludes women and people of color and marginalizes even those who make it through the pipeline. This literature review will critically discuss extant literature on women of color in STEM fields, including an extended analysis of the role that undergraduate research programs play in providing aspiring scholars of color with early socialization to careers in the sciences.
Scholars have very rarely attended specifically to the underrepresentation and experiences of women of color in STEM fields (an assessment of the literature with which Clewell, 1991 and Orn, 2005 concur). Scholarship on female scholars of color in education and the social sciences is abundant in comparison, and from that body of work the entire theory of critical race feminism has emerged as an intellectual response to the experiences of double marginalization that women of color in the academy have endured. Indeed, it is from this work that intersectionality literature originated. In my review of the literature, however, only Orn Ong (2005) employs intersectionality and critical race feminism in exploring underrepresentation of women of color in STEM fields. Just as a body of scholarship exists about women of color in the academy, in general, and in education and social sciences, more specifically, there is a large literature examining the underrepresentation of women in STEM fields; however, the vast majority of this does not explicitly consider the added impact of race, or it does so only tangentially (such as in concert with other individual-level characteristics). Less research has been conducted on the underrepresentation of people of color in science than women of science and here, too, only a small fraction of it analyzes the ways that gender compounds race-based inequities. The paucity of literature on women of color in STEM fields is easily apprehended through a Venn diagram, where each of the circles represents a subject of study and the size of the overlapping areas and of circles themselves represent the relative size of the literature on those subjects:
Figure
here
Fig. 1: The Depicting the relative size of existing literature on the intersection of race and gender in STEM fields
Scholarship on the STEM pipeline
Pipeline scholars have identified barriers to participation in the sciences for women and people of color as separate challenges; however, intersectional analyses are absent from this literature. (Oakes, 1990)Jeanne Oakes (1990) gives a prototypical assessment of this perspective. Careers in science and technology result from students passing through a long educational 'pipeline.' Doing so successfully involves three critical factors: opportunities to learn science and mathematics, achievement in these subjects, and students' decisions to pursue them
(Oakes, 1990, p. vi). Women tend to leave during senior high school and college, she finds, and they do so because they choose not to pursue scientific careers. Students of color start out with greater interest in science during elementary school, but because of lower achievement, tend to be funneled into remedial tracks presenting limited opportunity for science related experiences (vii). That is, of the three factors that facilitate progress through the pipeline (i.e., opportunity, achievement, and decisions), she finds that women choose not to pursue science careers while people of color are impeded by a combination of achievement and opportunity. Oakes advises, therefore, that educators should intervene at the places we know these groups tend to leak from the STEM career pipeline. She suggests altering the way science and math are taught at the elementary level will spur girls to consider science, and providing additional science exposure and role models in and out of the classroom to retain students of color (viii).
(Clewell & Anderson, 1991)Clewell (1991) reviewed the literature published between 1959 and 1990 on young women of color in the sciences and mathematics between grades four and eight, and found four general barriers impeded potential female scientists of color: student attitudes, student achievement, student selection of courses, and students' career interests and aspirations. Her review showed the tendency of the literature to explain underrepresentation in terms of student deficits. In this same vein, but on the other end of the pipeline, (Baker, 1998) Baker (1998) analyzes persistence in science and engineering Ph.D. programs among women and students of color, finding that when he controlled for ability
(questionably operationalized in terms of GRE scores and grade point averages), that sex and race differences in degree completion are significantly reduced. He does not indicate the effect for women of color, specifically, but does indicate that a gender gap persists even after controlling for GRE scores and GPA. His analysis conflates ability with test and academic performance, however, and uses measures shown to systematically vary by race and gender due to stereotype threat.
An alternative perspective shows that structural and cultural sources best explain attrition in STEM fields, not individual student adequacy or effort. This view sheds light on the external pressures on women and people of color that ultimately deter and exclude them from careers in the STEM disciplines. For example, (E. Seymour, 1992, 1995)(E. Seymour, 1992, 1995) actively debunks what she calls attrition myth theories
such as Oakes', which explain students' leaving of STEM majors for the social sciences and humanities to students' lack of ability, effort, or application. The widespread acceptance of this theory functions to allow schools and departments to focus on weeding out those least fit to survive, and to regard their leaving as a sort of 'natural selection' process
(Seymour, 1992, p. 237). Exploring reasons for switching from science to non-science majors, she finds that switchers
are just as academically successful, hard-working, and capable of facing the difficult conceptual content of STEM courses, but they less frequently use situational resources
to overcome the challenges also faced by non-switchers (Seymour, 1992, p. 232). In addition, the structural barriers she cites include the need to work long hours to pay tuition, high school preparation, length of the major, teaching quality, and approachability. Non-switching seniors cited coping strategies as a reason for their persistence in the major. Seymour's perspective is a clear improvement on the deficit-based attrition myth theories,
but it does not explore the impact of race as strongly as it does class and gender-based structural explanations; furthermore, it takes for granted that the pipeline metaphor best describes the reasons for women's underrepresentation, even as it posits alternative explanations for the pipeline's leaks.
Alternatives to the pipeline metaphor
A multidimensional critique of pipeline explanations for women's underrepresentation in sciences and engineering is advanced by (Xie & Shauman, 2003) Xie & Shauman (2003) in his widely acclaimed book, Women in Science. The pipeline framework, Xie contends, inherently limits the scope of how we study gender disparities by conceiving of becoming a scientist as an overly linear, stage-based process that equates noncompliance with the normative career trajectory to 'leaking' or 'dropping out'
(p. 9). Its narrow conceptualization also prevents alternate career trajectories from being seen as legitimate and overlooks the role of one's family, assuming that one's educational and occupational attainment are independent of other major life events. In addition to problems with the ways that the pipeline metaphor unduly restricts conventional wisdom about career processes, most pipeline-oriented research suffers from methodological problems. His comprehensive analyses of the dynamic and multidimensional processes by which women enter the science and engineering labor force are guided by a life course theoretical framework, which is informed by a combination of structural allocation and self-selection theories. While Xie's (2003) research only tangentially studies the impact of race, it makes a critical contribution to the literature on access to STEM careers, the vast majority of which leaves the assumptions of pipeline logic unquestioned.
Orn (2005) also introduces fresh perspective to the research literature through a critical race feminist perspective. Moreover, she is the only scholar I could identify who acknowledges that intersectionality of race and gender in access to science. She finds intersecting identity has largely been ignored in the literature, and thus takes a consciously intersectional perspective in relating the findings of her longitudinal, qualitative study of female students of color in physics. Women of color in physics sense that their belonging and competence in science are questioned because their bodies do not conform to prevalent images of the "ordinary" white male physicist
(p. 593). To persevere, her participants described two coping strategies: (1) gendered and racial passing, and (2) manipulating others' stereotypes of minority black women in the sciences by seeking to perform with superiority to their white and male peers. Lacking females of color with whom to identify in their own fields, these true pioneers in their discipline persist by avoiding and transcending stereotypes.
Undergraduate Research as a Means to Increase Access
To address persisting disparities for women and students of color in the sciences—particularly at the graduate school level and in the labor force—a variety of interventions have been developed to retain students in the sciences at all levels. One prominent approach is involvement of college students in faculty-mentored, original research. Among other outcomes, undergraduate researchers have higher baccalaureate attainment rates (Nagda, et al, 1998), greater interest in science careers (Campbell and Skoog, 2004; (Campbell & Skoog, 2004; Kremer & Bringle, 1990)Kremer and Bringle, 1990; Russell, 2007), and higher graduate school enrollment rates (Bauer & Bennett, 2003; Hearn, 1987; Russell, Hancock, & McCullough, 2007)(Bauer and Bennett, 2003; Hearn, 1997; Russell, 2007). The Boyer Commission (1998) thus urged research universities to create opportunities for all students to engage in research as one of ten recommendations for improving undergraduate education. Comparison group analyses, however, show that undergraduate research has a significantly stronger effect on the retention, aspirations and post-baccalaureate choices of students of color and first generation students' than those of white students and students whose parents attained a four-year degree (Hathaway, et al., 2002; Ishiyama, 2002; Nagda, et al., 1998; Russell, 2007).
Interestingly, in their program design, activities, and objectives many undergraduate research programs tend to reflect characteristics of both pipeline logic and the need to fundamentally rethink and restructure the process by which women and people of color approach the sciences. Consistent with pipeline-minded scholarship that emphasizes shoring up individual students otherwise at risk for attrition from the sciences, programs provide support structures to encourage academic success and increase students' self-confidence, for example. However, they do so through early socialization as a research scientist and extended engagement with faculty sponsors who can open doors that might have otherwise been closed – a particularly powerful experience for students from populations that have historically been marginalized in the sciences. Some programs, such as the Meyerhoff Scholars Program and McNair Scholars Program, explicitly emphasize connecting undergraduates with scholarly communities of color and role modeling, with the goal of increasing faculty diversity across the country. Such programs affirm the pipeline principles of access and retention; however, they seek not only to plug the pipeline's leaks, but also to alter the entire process by which scholars pass through it and to prepare students for what to expect on the other end as a scholar of color in the academy.
Although numerous programs exist specifically for students underrepresented in their disciplines based on their race/ ethnicity, gender, and/or socioeconomic status, scholarship on undergraduate research has not approached students' experiences with an eye to intersecting identities. A mixed methods of how female graduate students in the sciences perceived the long-term impact of their undergraduate research experience (Campbell & Skoog, 2004) (Campbell & Skoog, 2004) emphasiz emphasized the mentoring role that the research experience provided—both from their faculty mentor and graduate students working in their lab. Through their early experience with research, these women also gained self-confidence as a scientist, a solid understanding of the time demands a lab-based science career would require, and had their career aspirations influenced in the direction of scientific research. Of course, such a retrospective methodology among those who have persisted suffers from the drawbacks of selection bias; we should expect relatively positive outcomes of research to be reported when the sample does not include undergraduate research participants who did not persist in pursuing scientific careers after college.
Among the many types of undergraduate research that are proliferating, the Undergraduate Research Opportunities Program (UROP) here at the University of Michigan has a strong national reputation and scholarship on UROP is some of the undergraduate research literature's most methodologically rigorous. UROP was specifically developed to improve retention of students of color by broker[ing] intellectual relationships between faculty and first-year and sophomore undergraduates through research partnerships
(Nagda, et al., 1998, p. 58). Since most undergraduate research programs serve upperclassmen, UROP's program design is unique, and a rigorous quantitative study confirms the program's success in meeting its primary objective: the attrition rate for African American participants in the 1993-1994 year was approximately half that of African American non-participants in a control group (Nagda, et al., 1997, p. 62). African American program participants demonstrate significantly higher retention outcomes than participants from other racial/ ethnic backgrounds. Although it has since opened participation to students of all racial/ethnic backgrounds, the program leadership retains a particular emphasis on the success of women and students of color in the sciences and has an emerging focus on facilitating graduate education and postgraduate research.
In1 another study of UROP outcomes, (Hathaway, Nagda, & Gregerman, 2002)Hathaway, Nagda, & Gregerman (2002) undertake an inquiry into whether undergraduate research participants and non research participants at the University of Michigan differ in their pursuit of graduate education, use of faculty recommendations for post-baccalaureate opportunities, and continued contact with faculty after graduation. In order to overcome the selection bias problem, researchers matched university alumni who had participated in the Undergraduate Research Opportunities Program (UROP) with non-participants based on major, race/ ethnicity, GPA, and graduation date (N=291). They were surprised to discover that, among non-participants, enough respondents indicated participation in non-UROP undergraduate research that they were able to construct a third comparison group (which they called other research students).
Through Chi squared analyses, they found that UROP and other research student alumni were significantly more likely to have pursued graduate education, to be involved in ongoing research, and to use faculty for recommendations. Overall, UROP and other research students were significantly more likely to pursue graduate education than students of color (African American and Latino) who had not participated in undergraduate research. UROP students were also most likely to pursue doctoral degrees—including law and medicine. While White and Asian student were most likely to pursue doctoral education across the entire sample, UROP students of color were as likely to pursue doctoral education as White and Asian UROP students.
By offering a sub-environment in which students engage the research university's mission and scientists critical in carrying out that mission, undergraduate research can counteract two institutional factors that deter students from the sciences: lack of faculty contact and a lack of community with other students. Clearly, UROP participation has particular benefit to students of color over and above the benefit of research participation, in general, a finding that motivates the need for deeper understanding. While the article offers a more methodologically sophisticated analysis of research outcomes for students, like most scholarship in this literature it is retrospective. Thus, it cannot provide evidence to show whether or how specific structures of research influence students, nor does it explain how the research experience may stimulate students' consideration of specific graduate degrees and/or careers.
In general, literature on the impact of undergraduate research participation suffers from two methodological problems: selection bias and retrospective analysis. Selection bias is endemic in the literature, as most studies sample only from within a given research program, neglecting to compare learning outcomes with a matched comparison group of non-participants. This practice makes it difficult to ascertain which outcomes are indeed a function of research participation and which are correlates of the predispositions that lead students to participate in research in the first place. Another weakness is a reliance on retrospective analysis. By asking past research participants to reflect back on their experience we learn valuable information about its long term impact. Although such analysis does not necessarily weaken the validity of findings, it does prevent us from understanding how participants make meaning of the research experience while they are in it and how it is that research effects the beneficial outcomes that retrospective analyses have identified. In their methodological design, Hathaway, et al. (2002) overcomes the selection bias problem and is thus able to offer sound empirical support for the claims to research impact that many have posited without sufficient evidence. Applying this type of analysis to a set of longitudinal data would present an even stronger advance in the scholarship on the impact of undergraduate research.2
Like the two studies examining the impact of UROP participation on retention and graduate enrollment, (Barlow & Villarejo, 2004)Barlow & Villarejo (2004) likewise found that undergraduate research increased the likelihood that students of color majoring in a biological science would persist to graduation at University of California-Davis. Moreover, their participants were more likely to continue on to graduate education than graduates from the institution overall. The impact of undergraduate research experience on graduate school enrollment is well established for students in general, but particularly for students of color (Hathaway et al., 2002; Ishiyama, 2002; Russell et al., 2007; Elaine Seymour, Hunter, Laursen, & DeAntoni, 2004)(Hathaway et al., 2002; Ishiyama, 2002; Russell, Hancock, & McCullough, 2007; Elaine Seymour, Hunter, Laursen, & DeAntoni, 2004). However, in a large survey of 4500 undergraduate research participants and 3400 STEM degree recipients who had conducted undergraduate research, no significant differences were found by gender or race in program outcomes. No formulaic combination of activities optimizes the undergraduate research opportunity, nor should providers structure their programs differently for unique racial/ ethnic minorities or women
(Russell, et al., 2007, p. 549). Rather, the duration of their research experience was most strongly correlated with reporting expectations of earning a Ph.D. Among STEM field researchers, 73% said that the research experience raised their awareness of graduate school and 68% reported an increased interest in a STEM career as a result of their undergraduate research opportunity (Russell, et al., 2007).
Although women of color have made great strides in their educational and occupational attainment in the last forty years, access to careers in STEM fields represents a major frontier for race and gender equity in education. While the pipeline metaphor dominates the literature, the most current research advances alternative explanations for disparities that may empower scholars and practitioners to innovative scholarship and programming that extends opportunity to women scientists, especially those of color. Among these innovations are undergraduate research programs that use concrete research experience to stimulate the educational and career aspirations of students. Of particular relevance to the current analysis are findings from multiple studies showing that students from historically marginalized backgrounds disproportionately benefit from these programs, and that participation almost entirely erases baccalaureate attainment and graduate school enrollment gaps for women of color who major in STEM fields. However, resolving undergraduate retention and graduate school enrollment disparities does not resolve the persistent disparities in graduate degree attainment rates and attainment of both tenure-track faculty positions and tenure, itself.