The effect of college course evaluation feedback on instructor and student perceptions of instructional climate and effectiveness

An experimental study was undertaken to examine (1) effect of early course evaluation feedback to instructor on subsequent end-of-course class evaluations by students (n=1484) and instructor (n=78), and (2) stability of course evaluations by students and instructor. These voluntary class-instructor units were randomly assigned to experimental (feedback) and control (no feedback) groups. After attrition the feedback group contained 37 units and the control group 41 units. The 26 item Faculty-Course Evaluation Form (FCEF) was administered approximately three weeks into the quarter and again eight weeks later. The FCEF reflected the frequency of occurrence of certain instructor behaviors and over-all opinions of course value and teaching ability.The five-factor structure of the FCEF can be described with the following labels: Subject Organization and Competency, Motivation-Stimulation, Instructor-Student Relations, Reasonable Work Load and Tests, and Clearness of Grading Procedures.Individual class, instructor, and total score results were fed back to instructors in the experimental groups from the early FCEF administrators. Results indicated significant differences in favor of the feedback group on the Subject Organization and Competency, and Motivation-Stimulation scale. In addition moderately high stability of ratings for both classes and instructors was noted, but little agreement between classes and instructors.     

Investigation of angiogenesis genes with anterior cruciate ligament rupture risk in a South African population

The angiogenesis-signalling pathway is a physiological response after mechanical loading to promote matrix remodelling and thereby maintain tissue homeostasis. Studies have shown increased expression of angiogenic molecules in response to loading and in ruptured ligaments. Recently, polymorphisms within the vascular endothelial growth factor A (VEGFA) and kinase insert-domain receptor (KDR) genes were associated with risk of anterior cruciate ligament (ACL) ruptures and Achilles tendinopathy in Caucasian study groups. A case-control genetic association study was conducted on 100 controls and 98 participants with surgically-diagnosed ACL ruptures; of which 51 participants reported non-contact mechanism of injury (NON). All participants were genotyped for five functional polymorphisms: VEGFA (rs699947, rs1570360, rs2010963) and KDR (rs2071559, rs1870377). Haplotypes were inferred. In the male participants, the KDR rs2071559 AG genotype was significantly over-represented (P = 0.048, OR: 1.90, 95% CI: 1.00–3.59) in the controls. Furthermore, the GG genotype was significantly under-represented in the male controls compared to the male ACL group (P = 0.018, OR: 2.77, 95% CI: 1.17–6.55) and the male NON subgroup (P = 0.013, OR: 3.26, 95% CI: 1.24–8.58). Haplotype analysis implicated the KDR gene in all participants and in male participants separately. Collectively, these results implicate the angiogenesis-signalling pathway as a potentially key biological pathway contributing to ACL injury susceptibility.     

Non‐optimal uses of video in the classroom

This paper examines some instructional practices concerning the non‐optimal uses of video, films and other mass media in the K–12 classroom. Based on a six‐year process of observing and interviewing teachers regularly in two school districts in Massachusetts, USA, this paper presents a typology of seven common patterns of non‐optimal media use, instructional practices that diminish or weaken the value of film and video viewing as a learning tool. A telephone survey was conducted with a purposive sample of 130 middle‐school and high‐school teachers to provide additional evidence concerning teacher perceptions of the frequency of their colleagues' non‐optimal use of video. Teachers in the USA report that their colleagues frequently use media for non‐educational purposes, including to fill time, to keep students quiet, as a break from learning, or as a reward for good behavior. The implications of non‐optimal media use are considered in light of renewed interest in integrating media literacy into K–12 instruction.