Use of saliva for assessment of stress and its effect on the immune system prior to gross anatomy practical examinations

The objective of this study was to determine the longitudinal effects of a series of stressful gross anatomy tests on the immune system. Thirty‐six freshman occupational therapy students completed a written stress evaluation survey, and saliva samples were obtained at baseline and prior to each of three timed‐practical gross anatomy tests. Cortisol, secretory IgA (sIgA), and IL‐12 concentrations were measured within the salivary samples by enzyme‐linked immunosorbent assay. The total scores from the stress surveys were used as markers for environmental stress. Data were compiled for each student at baseline and prior to each examination and were compared by repeated‐measures MANOVA and Pearson's correlation test. Following normalization for protein concentration and flow rate, the concentrations of IL‐2, IL‐6, IL‐12, and sIgA progressively increased from baseline to the third test. Cortisol concentrations, following normalization for flow rate, were highest prior to the first test and became significantly reduced prior to second and third test. Prior to second and third test, salivary concentrations of IL‐6, IL‐2, IL‐12, and sIgA were significantly correlated (P < 0.05). In contrast, prior to third test, there was a negative correlation between salivary concentrations of cortisol and IL‐12 (P < 0.05). Progressive increases in salivary sIgA, IL‐6, IL‐2, and IL‐12 concentrations from the first to the third test coincident to decreased salivary cortisol suggest that the initial examination stressors precede significant effects on the immune system. These data suggest that there may be latent effects of examination stress on the immune system and that saliva can be used to predict these effects. Anat Sci Educ. © 2010 American Association of Anatomists.     

A Classroom Study on the Relationship Between Student Achievement and Retrieval-Enhanced Learning

Retrieval practice has been shown to produce powerful learning gains in laboratory experiments but has seldom been explored in classrooms as a means of enhancing students’ learning of their course-relevant material. Furthermore, research is lacking concerning the role of individual differences in learning from retrieval. The current study explored the effects of retrieval in a large undergraduate introductory biology course as a function of individual differences in student achievement. Students completed in-class exercises that required them to retrieve course information (e.g., recalling definitions for terms and labeling diagrams) followed by feedback or to simply copy the information without retrieving it. A later quiz over the information showed that high-performing students benefited more from retrieving than copying, whereas middle- and low-performing students benefited more from copying than retrieving. When asked to predict their quiz scores following the in-class exercises, high-performers demonstrated better overall metacognitive calibration compared to middle- or low-performers. These results highlight the importance of individual differences in learning from retrieval and encourage future research using course-relevant material to consider the role of student achievement in classroom-based interventions.     

Using student learning and development outcomes to evaluate a first-year undergraduate group video project

Students in an interdisciplinary undergraduate introductory course were required to complete a group video project focused on nutrition and healthy eating. A mixed-methods approach to data collection involved observing and rating video footage of group work sessions and individual and focus group interviews. These data were analyzed and used to evaluate the effectiveness of the assignment in light of two student learning outcomes and two student development outcomes at the University of Minnesota. Positive results support the continued inclusion of the project within the course, and recommend the assignment to other programs as a viable means of promoting both content learning and affective behavioral objectives.     

Assessment of the effects of student response systems on student learning and attitudes over a broad range of biology courses

With the advent of wireless technology, new tools are available that are intended to enhance students' learning and attitudes. To assess the effectiveness of wireless student response systems in the biology curriculum at New Mexico State University, a combined study of student attitudes and performance was undertaken. A survey of students in six biology courses showed that strong majorities of students had favorable overall impressions of the use of student response systems and also thought that the technology improved their interest in the course, attendance, and understanding of course content. Students in lower-division courses had more strongly positive overall impressions than did students in upper-division courses. To assess the effects of the response systems on student learning, the number of in-class questions was varied within each course throughout the semester. Students' performance was compared on exam questions derived from lectures with low, medium, or high numbers of in-class questions. Increased use of the response systems in lecture had a positive influence on students' performance on exam questions across all six biology courses. Students not only have favorable opinions about the use of student response systems, increased use of these systems increases student learning.     

Oral presentation as a form of summative assessment in a master’s level PGCE module: the student perspective

This paper examines the student perception of oral examination on a pre-service teacher education course at the Institute of Education, University of London. Students are required to carry out a school-based project and to present their findings at master’s level to a group of peers and examiners. Initial student evaluations showed the experience to be overwhelmingly positive, yet the qualitative comments suggested there were negative emotions unrepresented in the quantitative data. This study reports on a more detailed evaluation completed by 254 students in the 2009–2010 cohort, which explored the tension between the positive overall student experience and the complex emotions involved. In examining the student perspective in greater depth, it became clear that the combination of a school-based enquiry and an assessed oral presentation created an authentic learning context. Although there were anxieties associated with presenting findings to an audience, students felt there was a constructive alignment between their learning and the mode of assessment and the process supported the students’ developing professional identity.     

The Python Project: A Unique Model for Extending Research Opportunities to Undergraduate Students

Undergraduate science education curricula are traditionally composed of didactic instruction with a small number of laboratory courses that provide introductory training in research techniques. Research on learning methodologies suggests this model is relatively ineffective, whereas participation in independent research projects promotes enhanced knowledge acquisition and improves retention of students in science. However, availability of faculty mentors and limited departmental budgets prevent the majority of students from participating in research. A need therefore exists for this important component in undergraduate education in both small and large university settings. A course was designed to provide students with the opportunity to engage in a research project in a classroom setting. Importantly, the course collaborates with a sponsor''s laboratory, producing a symbiotic relationship between the classroom and the laboratory and an evolving course curriculum. Students conduct a novel gene expression study, with their collective data being relevant to the ongoing research project in the sponsor''s lab. The success of this course was assessed based on the quality of the data produced by the students, student perception data, student learning gains, and on whether the course promoted interest in and preparation for careers in science. In this paper, we describe the strategies and outcomes of this course, which represents a model for efficiently providing research opportunities to undergraduates.     

Implementation of Real‐World Experiential Learning in a Food Science Course Using a Food Industry‐Integrated Approach

Success skills have been ranked as the most important core competency for new food science professionals to have by food science graduates and their employers. It is imperative that food science instructors promote active learning in food science courses through experiential learning activities to enhance student success skills such as oral and written communication, critical thinking, problem solving, and team work. The aim of this study was to incorporate “real‐world” experiential learning into a food product development course. Undergraduate students enrolled in a food product development course worked on a semester‐long product development case study developed by the Instructor of the course and the Manager from ACH Food Companies, Inc. The case study was presented to students in the form of a product development competition. Students were placed into groups and given the task to develop a cake mix with specified parameters. At the end of the semester, student groups participated in a case study competition to showcase their product concepts. Each student group gave a PowerPoint presentation and was evaluated using selected criteria. Students rated the course overall as being very good. Students perceived the case study to be beneficial and informative regarding employer (ACH's) expectations. Students recommended that the Instructor minimize restrictions/specifications for product concepts and increase the quantity of course/laboratory meetings per week. This approach will continue to be used and further evaluated as an approach to incorporate active learning and provide food science undergraduates with a sense of employer expectations.     

The Effects of Morning Naps, Car Trips, and Maternal Separation on Adrenocortical Activity in Human Infants

3 studies of adrenocortical activity in healthy 9-month-old infants were conducted to examine unanticipated results obtained in previous research. In the first study, morning naps were examined and found to be associated with significant decreases in salivary cortisol. These decreases were followed by a significant return to prenap cortisol concentrations. In the second study, riding for 40 min in the car was also shown to significantly lower salivary cortisol concentrations. This effect was obtained both for infants who did and who did not sleep during the car trip. In the third study, the effect of 30 min of maternal separation in the laboratory on salivary cortisol was compared to the effect of 30 min of play with mother present. Separation resulted in significantly higher salivary cortisol concentrations as compared to play with mother present. In general, correlations between cortisol and behavior were found to be nonsignificant under conditions that did not produce stress elevations in cortisol, while less positive, more distressed behaviour was significantly correlated with cortisol under separation or stress conditions.     

Useful Words for College Teachers

Abstract

The authors designed an active learning project for a child development course in which students apply core concepts to a hypothetical baby they “raise” during the term. Students applied developmental topics to their unique, developing child. The project fostered student learning and enthusiasm for the material. The project's versatility makes it easily adaptable to a wide variety of courses and formats depending on instructor objectives or student population. Furthermore, the project avoids obstacles that commonly underlie instructor reluctance when considering the implementation of role-play assignments.     

A Placement Test for Computer Science: Design,Implementation, and Analysis

An introductory CS1 course presents problems for educators and students due to students' diverse background in programming knowledge and exposure. Students who enroll in CS1 also have different expectations and motivations. Prompted by the curricular guidelines for undergraduate programmes in computer science released in 2001 by the ACM/IEEE, and driven by a departmental project to reinvent the undergraduate computer science and computer engineering curricula at the University of Nebraska-Lincoln, we are currently implementing a series of changes which will improve our introductory courses. One key component of our project is an online placement examination tied to the cognitive domain that assesses student knowledge and intellectual skills. Our placement test is also integrated into a comprehensive educational research design containing a pre- and posttest framework for assessing student learning and providing valuable feedback for needed instructional revisions. In this paper, we focus on the design and implementation of our placement exam and present an analysis of the data collected to date.     

Designing asynchronous online fermentation science materials including using a home fermented foods project to engage online learners

The number of online courses offered by universities in America continues to increase. Due to limited direct interactions with students, these courses can struggle to promote student engagement. Food science is uniquely situated for implementation of hands‐on project‐based learning opportunities since basic experiments can be performed in a kitchen with minimal supplies and equipment. The purpose of this teaching and learning tip is to share materials designed for an asynchronous online course, instructional fermentation vignettes, and the Home Fermented Foods Project assignment, which tasks students with creating two fermented foods with two accompanying documents explaining the science of each employed steps. Students are engaged with the projects while connecting the lecture material to familiar products that they create such as sauerkraut, yogurt, and bread. Overall, based on student evaluations and our interactions with the students, our implementation of this project has been positive. Downloadable handouts containing assignment details are available as Supporting Information.     

Relationships between students' and instructional variables with satisfaction and learning from a Web-based course

The author discusses the results of a study about the effect of students' and instructional variables on satisfaction and achievement in a Web-based course. Results indicated that gender, age, learning styles, time spent on the course, and perceptions of student–student interactions, course activities, and asynchronous Web-based conferences were not related to satisfaction and learning outcomes. Those students who entered the course with better Cumulative Grade Point Average (CGPA) scores achieved higher final grades in the course, but did not express more satisfaction with the learning environment. Computer experience did not influence achievement but experienced computer users were more satisfied with the course. Students who perceived the student–instructor interactions positively felt that their discussion group had performed well during the conferences, and viewed the learning materials used in the conferences positively improved grades and were more satisfied with the course. Students expected instructor-led learning. There is a need to explicitly design an organising strategy to assist students in completing the problem-based learning processes during the Web-based conferences.     

Distance Learning on the Internet: An Exploratory Study

The Internet and Web-based technologies have become a popular platform for the development and delivery of distance learning (DL) programs in an online class setting. While these programs have proven popular with both students and faculty, few research studies have been done to determine the impact of these virtual courses on student learning and/or satisfaction. This article presents the development of a Web-based course model and the results from an exploratory study conducted to determine the effectiveness of this model on student satisfaction. Results from the survey reveal that the students had a positive experience with this Web-based course model. Students were generally satisfied with the online learning environment, appreciated the flexibility of being able to access course material any time and any place, and were satisfied with quality and course content.     

Enhancing student learning of research methods through the use of undergraduate teaching assistants

By using a quasi-experimental design, in this study, we test the effect of undergraduate teaching assistants on student learning. Data were collected from 170 students enrolled in four sections of a quantitative research methods course, two sections without undergraduate teaching assistants and two sections with undergraduate teaching assistants, over two semesters. Results indicate that having undergraduate teaching assistants in the classroom can result in higher student performance. Students in the sections with undergraduate teaching assistants earned higher grades, were more likely to pass the course with a C or higher and performed better on half of the student learning outcomes than students in the sections without an undergraduate teaching assistant. Based on the overwhelmingly positive results on student learning, we would recommend the active use of undergraduate teaching assistants in the classroom, but especially for courses that students find challenging.     

A multimedia‐enhanced problem‐based learning experience in the Malaysian classroom

In this paper a multimedia project was incorporated into a problem‐based learning environment to examine how learning in multimedia could be enhanced through the use of problem‐based learning. Students in a second year course in the Faculty of Creative Multimedia (FCM) were assigned the problem‐based multimedia project, they worked in groups, solving the problem using the multimedia authoring process (MAP). This paper reports on the structuring of the student learning process, the impact of the problem‐based learning environment on student learning and the important skills such as creative and critical thinking, teamwork, communication, collaborative and problem‐solving skills that arose as the result of this intervention. In the process, a multimedia‐enhanced problem‐based learning (M‐PBL) model was created. The interrelationships between the teacher, students and technology in this learning mode were also established. A survey was conducted to assess the reactions and attitudes of the students towards this learning environment. The results obtained were positive and satisfactory.     

From Genes to Proteins to Behavior: A Laboratory Project That Enhances Student Understanding in Cell and Molecular Biology

In the laboratory, students can actively explore concepts and experience the nature of scientific research. We have devised a 5-wk laboratory project in our introductory college biology course whose aim was to improve understanding in five major concepts that are central to basic cellular, molecular biology, and genetics while teaching molecular biology techniques. The project was focused on the production of adenine in Saccharomyces cerevisiae and investigated the nature of mutant red colonies of this yeast. Students created red mutants from a wild-type strain, amplified the two genes capable of giving rise to the red phenotype, and then analyzed the nucleotide sequences. A quiz assessing student understanding in the five areas was given at the start and the end of the course. Analysis of the quiz showed significant improvement in each of the areas. These areas were taught in the laboratory and the classroom; therefore, students were surveyed to determine whether the laboratory played a role in their improved understanding of the five areas. Student survey data demonstrated that the laboratory did have an important role in their learning of the concepts. This project simulated steps in a research project and could be adapted for an advanced course in genetics.     

Action research and reflection on student approaches to learning in large first year university classes

This paper presents an action research approach to exploring methods of improving the learning styles and outcomes of first year university students within large class environments. The genesis of this project stemmed from an observation that entire tutorial groups were often lethargic in their approach to learning. Following a survey of learning styles, students were exposed to more student-centric teaching styles within tutorial groups, with a view to encouraging deeper student learning and self-regulated learning behaviours. Although the project was successful in motivating students' participation in class activities, no noticeable change to a sustained deeper learning style became evident. The findings suggest that simply motivating students to participate in class does not necessarily alter overall learning styles, at least in the short term. This suggests that the process of “unlearning” previous learning styles may pose a significant problem for instructors and it appears likely that the process of changing from surface to deep learning may require more than a single course intervention. However, there is some evidence that student-centred and self-regulated learning results in a more positive learning experience for both students and teachers. The article concludes with a model of proposed relationships uncovered by the research which deserve further exploration in the quest to provide greater levels of student satisfaction with their higher education experiences.     

Accelerated Learning: A Study of Faculty and Student Experiences

In this study we explored faculty and student experiences of accelerated learning. We conducted interviews with faculty members who had delivered the same course in 12 and 6-week timeframes, and we analysed a student survey. Students reported overall positive experiences in the accelerated courses, particularly in the social aspects of learning, higher than usual motivation, and confidence in their learning. However, both faculty and students raised concerns about the scope and timing of assessment tasks, student workload expectations, faculty workload, and administration of courses. We offer recommendations regarding implementation, assessment practices, and management of learning in an accelerated timeframe.     

Stress and emotions during experiments in biology classes: Does the work setting matter?

Experiments are a complex teaching method carrying a high cognitive load and the risk of failure, which both may induce stress among students. However, it remains unclear if the work setting modulates physiological, subjective, and/or emotional stress responses during experiments. In a randomized experimental field study school students (N = 104) either watched a biology experiment on video (passive condition), conducted the experiment on their own (active condition) or in small groups (interactive condition). Meanwhile, their subjective stress perception, heart rate variability (HRV), salivary cortisol concentration, and achievement emotions were assessed. In the active condition we observed the strongest subjective and HRV stress responses, followed by the interactive condition. Students of the passive condition displayed the weakest stress reactions. Students of the other two conditions showed a weakened diurnal cortisol decrease, indicating more stress. Across conditions, enjoyment dropped and boredom increased, most pronounced in the passive condition. Moreover, there were some associations between subjective, emotional and physiological stress responses. The findings suggest that conducting experiments alone carries the risk of self-attributed failure signified by elevated stress. In contrast, conducting an experiment in a group is less stressful, as others may constitute a source of support. Watching others conduct an experiment carries a low risk of failure and, thus, the lowest stress responses, but comes with the cost of minimized enjoyment and maximized boredom.     

The Value-Added Nature of Service-Learning

This research explores the benefits of service-learning among a group of Midwestern college students. Students enrolled in a section of a Juvenile Delinquency course served as volunteers at a juvenile detention facility and were studied using a pre-test/post-test survey design. This pilot project also included a comparison group of students in a section of the course which did not involve service-learning. The study compared service-learning to non-service-learning students in terms of attitudes regarding juvenile delinquency, punishment, and attributions of criminal behavior. We also examined any possible effects of service-learning on student academic skills, career goals, and comfort level with delinquents. Overall, we found that the service-learning project was a valuable educational tool having a positive impact on a number of student outcomes. We discuss the implications of these findings for service-learning research and practice.