skip to main content


Title: Postdocs’ lab engagement predicts trajectories of PhD students’ skill development
The doctoral advisor—typically the principal investigator (PI)—is often characterized as a singular or primary mentor who guides students using a cognitive apprenticeship model. Alternatively, the “cascading mentorship” model describes the members of laboratories or research groups receiving mentorship from more senior laboratory members and providing it to more junior members (i.e., PIs mentor postdocs, postdocs mentor senior graduate students, senior students mentor junior students, etc.). Here we show that PIs’ laboratory and mentoring activities do not significantly predict students’ skill development trajectories, but the engagement of postdocs and senior graduate students in laboratory interactions do. We found that the cascading mentorship model accounts best for doctoral student skill development in a longitudinal study of 336 PhD students in the United States. Specifically, when postdocs and senior doctoral students actively participate in laboratory discussions, junior PhD students are over 4 times as likely to have positive skill development trajectories. Thus, postdocs disproportionately enhance the doctoral training enterprise, despite typically having no formal mentorship role. These findings also illustrate both the importance and the feasibility of identifying evidence-based practices in graduate education.  more » « less
Award ID(s):
1760894
NSF-PAR ID:
10147628
Author(s) / Creator(s):
; ; ; ; ; ; ;
Date Published:
Journal Name:
Proceedings of the National Academy of Sciences
Volume:
116
Issue:
42
ISSN:
0027-8424
Page Range / eLocation ID:
20910 to 20916
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
More Like this
  1. null (Ed.)
    Purpose This study aims to examine how science, technology, engineering, and mathematics doctoral students interact with postdocs within the research laboratory, identifying the nature and potential impacts of student–postdoc mentoring relationships. Design/methodology/approach Using a sample of 53 doctoral students in the biological sciences, this study uses a sequential mixed-methods design. More specifically, a phenomenological approach enabled the authors to identify how doctoral students make meaning of their interactions with postdocs and other research staff. Descriptive statistics are used to examine how emergent themes might differ as a product of gender and race/ethnicity and the extent to which emergent themes may relate to key doctoral student socialization outcomes. Findings This study reveals six emergent themes, which primarily focus on how doctoral students receive instrumental and psychosocial support from postdocs in their labs. The most frequent emergent theme captures the unique ways in which postdocs provide ongoing, hands-on support and troubleshooting at the lab bench. When examining how this theme plays a role in socialization outcomes, the results suggest that doctoral students who described this type of support from postdocs had more positive mental health outcomes than those who did not describe this type of hands-on support. Originality/value Literature on graduate student mentorship has focused primarily on the impact of advisors, despite recent empirical evidence of a “cascading mentorship” model, in which senior students and staff also play a key mentoring role. This study provides new insights into the unique mentoring role of postdocs, focusing on the nature and potential impacts of student–postdoc interactions. 
    more » « less
  2. Multiple studies report the benefits of authentic research experiences in STEM education. While most of them focus either on course-based research projects or on undergraduate students’ experiences, few document authentic learning experiences unfolding in real time among and between graduate students in research laboratories. Therefore, we situate our study in the context of authentic research experiences in research laboratories and focus on documenting learning processes as they unfold during daily practices in the laboratories. Specifically, the goal of our study is to observe and document how graduate students, and other lab members, learn from one another within the cultural space of the laboratory, and what aspects of laboratory culture facilitate and what impede learning. To that end, we use cognitive ethnography, an ethnographic approach combined with cognitive science to study cognitive processes through participant-observation of two engineering research laboratories. We identified the following themes pertaining to learning experiences: scaffolding (structured activities or apprenticeship), peer-to-peer learning, self-directed and self-regulated learning, and independence in research activities. While in many respects the two laboratories are similar, the presence and role of a leader-mentor in daily activities is what set them apart. In this report, we analyze the impact of leadership-mentorship on learning and professional formation. We argue that the degree to which a leader-mentor is consistently active in the laboratory’s life presents advantages and disadvantages with respect to different aspects of learning and professional formation. On one hand, professional development of students may be hindered by the absence of direct oversight from an in-laboratory professional mentor, resulting in delayed graduation for example. On another, absence of direct oversight can compel students to independently seek out mentors who have important expertise to help complete projects in a timely manner, an important professional skill. In the first case, students benefit from the expertise of mentors, so having mentors consistently present in the laboratory helps students efficiently conduct their projects. In the second case, students learn that they cannot always rely on only one person to provide direction and will need to seek help from other quarters. 
    more » « less
  3. This project will contribute to the national need for well-educated scientists, mathematicians, engineers, and technicians by supporting the retention and graduation of high-achieving, low-income students with demonstrated financial need at Minnesota State University, Mankato. Over its six year duration, this project will fund scholarships to 120 unique full-time students who are pursuing Bachelor of Science degrees in engineering. First semester junior, primarily transfer, students at Iron Range Engineering will receive scholarships for one semester. The Iron Range Engineering (IRE) STEM Scholars Program provides a financially sustainable pathway for students across the nation to graduate with an engineering degree and up to two years of industry experience. Students typically complete their first two years of engineering coursework at community colleges across the country. Students then join IRE and spend one transitional semester gaining training and experience to equip them with the technical, design, and professional skills needed to succeed in the engineering workforce. During the last two years of their education, IRE students work in industry, earning an engineering intern salary, while being supported in their technical and professional development by professors, learning facilitators, and their own peers. The IRE STEM Scholars project will provide access to a financially responsible engineering degree for low-income students by financially supporting them during the transitional semester, which has two financial challenges: university tuition costs are higher than their previous community college costs, and the semester occurs before they are able to earn an engineering co-op income. In addition, the project will provide personalized mentorship throughout students’ pathway to graduation, such as weekly conversations with a mentor. By providing these supports, the IRE STEM Scholars project aims to prepare students to be competitive applicants for the engineering workforce with career development and engineering co-op experience. Because community colleges draw relatively representative proportions of students from a variety of backgrounds, this project has the potential to learn how transfer pathways and co-op education can support financially sustainable pathways to engineering degrees for a more diverse group of students and contribute to the development of a diverse, competitive engineering workforce. The overall goal of this project is to increase STEM degree completion of low-income, high-achieving undergraduates with demonstrated financial need. As part of the scope of this project, a concurrent mixed-methods research study will be done on engineering students’ thriving, specifically their identity, belonging, motivation, and overall wellbeing (or mental and physical health). Student outcomes have previously been measured primarily through academic markers such as graduation rates and GPA. In addition to these outcomes, this project explores ways to better support overall student thriving. This study will address the following research questions: How do undergraduate students’ engineering identity and belongingness develop over time in a co-op-based engineering program? How do undergraduate students’ motivation and identity connect to overall wellbeing in a co-op-based engineering program? In the first year of the IRE STEM Scholars Project, initial interview data describe scholars’ sense of belonging in engineering, prior to their first co-op experiences and survey data describe IRE students’ experiences in co-op and overall sense of belonging. Future work will utilize these values to identify ways to better support the IRE STEM scholars’ identity development as they move into their first co-op experiences. This project is funded by NSF’s Scholarships in Science, Technology, Engineering, and Mathematics program, which seeks to increase the number of low-income academically talented students with demonstrated financial need who earn degrees in STEM fields. It also aims to improve the education of future STEM workers, and to generate knowledge about academic success, retention, transfer, graduation, and academic/career pathways of low-income students. 
    more » « less
  4. null (Ed.)
    To address the need for more structured, diverse, inclusive, equitable, holistic, and ongoing career planning, Individual Development Plans (IDPs) are used widely by academic institutions. Although IDPs have an enormous capacity to contribute to a wide scope of student outcomes including equitable training, mentorship, wellness, and career planning, assessment is complicated by the different IDP ideologies, frameworks, and tools that exist, as well as the different ways IDP creation process is facilitated. The goal of the NSF-funded Impact Indicators and Instruments for Individual Development Plans (I3IDP) project is to develop instruments to measure the outcomes and impact of IDPs on the development of graduate students in STEM. The development of these assessment instruments will facilitate the generation of comparable data within and across institutions to enhance the understanding of best practices in IDP use for PhD career planning. Of particular note is how IDPs may help lower the career and training barriers that exist for diverse and underrepresented groups. Partners behind this NSF funded project include GCC and creators from well-known IDP tools (myIDP.org, ChemIDP.org, ImaginePhD). In this interactive session we will present the indicators and outcomes of the IDP process as determined from stakeholder interviews and literature review, give participants a preview of the survey instruments, and discuss how IDP intervention can be used to provide more equitable training to graduate students and postdocs across multiple identity differences and intersectionality. 
    more » « less
  5. Opportunities for undergraduate research in STEM programs at community colleges can be few where lower-division science curriculum emphasizes classroom and laboratory-based learning and research laboratories are limited in number. This is particularly true in the geosciences where specialized programs are extremely rare. Urban serving academic research institutions have a unique role and opportunity to partner with regional community college programs for undergraduate research early-on in student post-secondary educational experiences. Programs built for community college transfer students to urban serving undergraduate programs can serve to integrate students into major programs and help reduce transfer shock. The benefits of exploring research as an undergraduate scholar are numerous and include: building towards mastery of technical skills; developing problem-solving in a real-world environment; reading and digesting scientific literature; analyzing experimental and simulation data; working independently and as part of a team; developing a mentoring relationship with a research advisor; and building a sense of belonging and confidence in a scientific field. However, many undergraduate research internships are targeted towards junior-level STEM majors already engaged in upper-division coursework and considering graduate school which effectively excludes community college students from participating. The Center for Climate and Aerosol Research (CCAR) Research Experience for Undergraduate program at Portland State University serves to help build the future diverse research community. 10-week intern research experiences are paired with an expert faculty mentor are designed for students majoring in the natural/physical sciences but not necessarily with a background in climate or atmospheric science. Additional programmatic activities include: 1-week orientation and training using short courses, faculty research seminars, and hands-on group workshops; academic professional and career development workshops throughout summer; journal club activities; final presentations at end of summer CCAR symposium; opportunities for travel for student presentations at scientific conferences; and social activities. Open to all qualifying undergraduates, since 2014 the program recruits primarily from regional (Northwest) community colleges, rural schools, and Native American serving institutions; recruiting students who would be unlikely to be otherwise exposed to such opportunities at their home institution. Over the past 9 cohorts of REU interns (2014-2019), approximately one third of CCAR REU scholars are community colleges students. Here we present criteria employed for selection of REU scholars and an analysis of selection biases in a comparison of students from community colleges, 4-year colleges, and PhD granting universities. We further investigate differential outcomes in efficacy of the REU program using evaluation data to assess changes over the program including: knowledge, intrinsic motivation, extrinsic motivation, science identity, program satisfaction, and career aspirations. In this presentation, we present these findings along with supportive qualitative analyses and discuss their implications for community college students in undergraduate research programs in geosciences. 
    more » « less