| Literature DB >> 35340447 |
Marie A Smith1, Jeffrey T Olimpo2, Karen A Santillan2, Jacqueline S McLaughlin3.
Abstract
The integration of course-based undergraduate research experiences (CUREs) into science, technology, engineering, and mathematics (STEM) laboratory curricula has provided new avenues to engage students at all levels in discovery-based learning. Empirical research demonstrates that CUREs have the potential to foster students' development of scientific process and reasoning skills, attitudes, motivations, and persistence in STEM. Yet, these outcomes are largely reported for studies conducted in the United States, Canada, Europe, and Australia. It therefore remains unclear to what extent CUREs are impactful for students enrolled in alternate international university contexts. To address this concern, we conducted a quasi-experimental mixed methods study to investigate the impact of a one-semester food microbiology and public health (FMPH) CURE on nonmajors students' development of science identity, science communication and process skills, science community values, and science-society perceptions at a private institution in Côte d'Ivoire, West Africa. Content analysis of students' end-of-semester research poster products and thematic analysis of student responses to post-semester open-ended survey items revealed positive gains with respect to student learning and student perceptions of the relevancy of their research to diverse audiences. Paired t-test analyses of pre-/post-semester closed-ended survey responses likewise indicated significant gains in students' science identity and science community values development as well as their confidence in handling and treating foods to reduce the bacterial load on those foods. Collectively, these findings suggest that the FMPH CURE was a meaningful and relevant learning experience capable of promoting students' growth as scientists and scientifically-minded citizens.Entities:
Keywords: CURE; civic engagement; community engagement; course-based undergraduate research experience; international education; introductory biology; nonmajors; science identity; science process skills
Year: 2022 PMID: 35340447 PMCID: PMC8943608 DOI: 10.1128/jmbe.00212-21
Source DB: PubMed Journal: J Microbiol Biol Educ ISSN: 1935-7877
FMPH CURE student learning goals and outcomes
| Student learning objective | Method(s) of assessment |
|---|---|
|
1. Apply scientific techniques and practices (e.g., literature review; laboratory skills) to execute a student-designed, team-based research project | Student Poster Products, Open-Ended Response Prompts |
|
2. Interpret data collected as a result of executing a student-designed, team-based research project and communicate those results to diverse audiences | Student Poster Products, Open-Ended Response Prompts |
|
3. Demonstrate increased, positive attitudes with respect to one’s role as a scientific researcher and scientifically-engaged citizen as well as with respect to scientific values, more broadly | Pre-/Post-Course Survey |
|
4. Value the role of science in society | Open-Ended Response Prompts |
Student learning objectives were developed based on Bloom’s and Fink’s Taxonomies of Learning (as described in [34, 35]).
Complete descriptions of each of the assessments listed in this table can be found in the “Methods” section.
FMPH CURE student demographic characteristics
| Category | Participants ( |
|---|---|
| Gender | |
| Male | 10 |
| Female | 10 |
| Race/Ethnicity | |
| Black, African, or African American | 20 |
| Other Race or Ethnicity | 0 |
| First Generation Student Status | |
| Continuing generation | 18 |
| First generation | 2 |
| Major | |
| STEM | 2 |
| Non-STEM | 18 |
| Prior Research Experience | |
| Prior Experience | 2 |
| No Prior Experience | 18 |
N = 20.
Student performance on end-of-semester poster presentations
| Scoring criterion | Avg score (SEM) | Mode | Minimum score | Maximum score |
|---|---|---|---|---|
| Topic Selection | 3.00 (0.00) | 3.00 | 3.00 | 3.00 |
| Existing Knowledge, Research, and/or Views | 2.78 (0.15) | 3.00 | 2.00 | 3.00 |
| Design Process | 2.56 (0.18) | 3.00 | 2.00 | 3.00 |
| Analysis | 2.67 (0.17) | 3.00 | 2.00 | 3.00 |
| Conclusions | 2.78 (0.15) | 3.00 | 2.00 | 3.00 |
| Limitations and Implications | 2.11 (0.26) | 2.00 | 1.00 | 3.00 |
| Context/Purpose for Writing | 2.89 (0.11) | 3.00 | 2.00 | 3.00 |
| Syntax/Mechanics | 2.44 (0.18) | 2.00 | 2.00 | 3.00 |
Scoring criteria were adapted from the AAC&U Inquiry and Written Communication VALUE rubrics (https://www.aacu.org/value-rubrics; Appendix 2) and were applied to all poster submissions (n = 9).
Pre-/post-semester comparisons of student survey responses
| Item | Pre-score | Post-score | |
|---|---|---|---|
| Science Community Values | |||
| I think it is valuable to conduct research that builds the world’s scientific knowledge. | 4.60 (0.14) | 4.75 (0.12) | 0.330 |
| I think discussing new ideas between scientists is important. | 4.35 (0.13) | 4.80 (0.09) | 0.004 |
| I think that scientific research can solve many of today’s problems. | 4.40 (0.20) | 4.65 (0.11) | 0.262 |
| I feel that discovering something new in the sciences is thrilling. | 4.00 (0.16) | 4.35 (0.17) | 0.049 |
| Science Identity | |||
| The daily work of a scientist is appealing to me. | 3.00 (0.23) | 3.70 (0.22) | 0.012 |
| I derive great personal satisfaction from working on a team that is doing important research. | 4.15 (0.17) | 4.40 (0.13) | 0.234 |
| I have come to think of myself as a “scientist.” | 2.85 (0.25) | 2.95 (0.23) | 0.541 |
| Student Attitudes Toward Learning and Confidence in Learning Gains | |||
| I am interested in learning about how to prevent bacterial growth on various types of food. | 3.85 (0.26) | 4.40 (0.20) | 0.037 |
| I am confident that I can choose foods less likely to contain a lot of bacteria. | 3.65 (0.26) | 4.35 (0.17) | 0.007 |
| I am confident that I can treat foods to prevent bacterial growth. | 3.30 (0.27) | 4.05 (0.21) | 0.005 |
Adjusted α = 0.0125 following Bonferroni correction.
Adjusted α = 0.0167 following Bonferroni correction.
Student responses to the question: “What scientific, professional, and/or technical skills do you believe you have gained as a result of taking part in this laboratory experience?”
| Theme | Number of responses (%) | Sample student response |
|---|---|---|
| Increased Awareness of Foodborne Illness | 5 (25%) | “I think it will be about paying more attention to bacteria in foods. I will be more cautious when buying street foods.” |
| Collaboration/Teamwork | 7 (35%) | “I have firstly learned to really work in teams; this is something that I did not really like before.” |
| Data Analytics and Dissemination | 3 (15%) | “I have learned to analyze and discuss the result of the experiment.” |
| Laboratory Safety | 1 (5%) | “… everything should be sterilized, we should be well dress[ed], and we need to follow the protocol.” |
| Experimental Design/Techniques | 13 (65%) | “I learned more about the scientific method. In fact, before taking this lab experience, I was not really aware of how scientists were proceeding from the formulation of the hypothesis to the results of [the] experiment.” |
| Scientific Reasoning | 1 (5%) | “I have developed my scientific acumen.” |
| Troubleshooting/Learning from Failure | 1 (5%) | “… I was able to gain skills like… learning from failures.” |
| Patience with the Pace of Scientific Research | 1 (5%) | “I have become patient…” |
N = 20; student responses were coded into multiple categories, as appropriate.
Student responses to the question: “In what way(s) do you feel the research that you have done this semester will impact your local community?”
| Theme | Number of responses (%) | Sample student response |
|---|---|---|
| Increasing Awareness of Foodborne Illness | 13 (65%) | “The project that we have done has a big impact on our community. In [the] Ivory Coast, meat is always sitting outside, and a lot of street restaurant owners do not wash or hand[le] the meat well. It leads to diseases, especially when paired with vegetables. So, I hope that by doing this research, we can spread knowledge…” |
| Dissemination of New Sanitation Methods | 8 (40%) | “… change the way people work, make them adopt new habits to increase safety of food.” |
| Changes in Personal Behavior | 8 (40%) | “I will apply my knowledge in my day-to-day life, meaning I will pay attention to my eating habits, the kinds of foods I usually eat, and be really cautious when it comes to food.” |
| Enhance Knowledge of How to “Do” Science | 1 (5%) | “I would bring my knowledge [to] my communities on diverse experiments [that we have] done in class.” |
N = 20; student responses were coded into multiple categories, as appropriate.
Note that statements in this coding category reflected participants’ views regarding how they would change their own behaviors (rather than those of community members), though these statements often described interactions the participants would have with other individuals in their community.