Student teachers’ and in-service teachers’ peer learning: a realist synthesis

The aim of this review in the form of a realist synthesis is to understand what makes peer (student) teacher learning activities effective. Three types of peer learning were explored: collaborative, coaching, and assessment activities. Hypotheses were developed and tested against a set of 63 studies. These hypotheses indicated what mechanisms (i.e., characteristics of the activities) would influence the effectiveness of the activities and which contexts (i.e., factors) influenced this process. Findings showed that activities wherein participants gain subject matter and pedagogical content knowledge and apply this into practice made such learning effective. Peer learning is also reinforced by facilitators, reflection, and feedback, and influenced by personal and interpersonal factors. The main contribution of this realist synthesis is the practical implications for developers of peer learning activities, for school leaders and teacher educators, and for (student) teachers.     

Intimations of the 21st Century

By happenstance rather than design, what began as a single study intended to refute the validity of student ratings of instruction turned into a 30-year quest into the nature of college teaching. Although I found that student ratings can be affected by seemingly extraneous variables such as instructor reputation, I quickly realized that the validity issue was not as simple as it first appeared, raising further questions such as: Was the student ratings questionnaire used in my study valid to begin with? Is instructor reputation simply a nuisance variable, even though it affects the validity of student ratings? Are students seduced by instructor reputation only under certain conditions? and so on. Oddly enough, a number of researchers, including myself, initially became interested in studying college teaching by attempting to demonstrate the invalidity of student ratings despite a research.     

Perceived submaximal force production in young adults

The purpose of this investigation was to examine the force production patterns using perceived stimulus cues from 10% to 90% of maximal force. In Experiment 1, 54 men (age: 19-34 years) and 53 women (age: 18-37years) performed leg extensions on a dynamometer at a speed of 60 degrees/s. Participants produced actual forces perceived to be 10-90% of maximal force in 10% increments followed by a maximal force. A 2-min rest interval was maintained between each increment. Participants rested 5 min and repeated the protocol. Desired forces were calculated as the required percentage of the produced maximalforce. In Experiment 2, 40 men (age: 18-30years)followed the protocol ofExperiment 1, but the submaximal stimuli were randomly presented. In Experiment 1, test-retest results indicated consistency between the trials for actual and maximal force (r = .90). The correlations between actual and desired forces were moderately high (r > .76). Actual forces trended above desired forces at 10% of maximal, with median errors ranging 33-40% for men and 60-73% for women. From 30% to 90% of maximal forces, actual trended below desired forces, with median errors ranging from a low of 1.5% to a high of 37%. A power function analysis relating the change in actual force with desired force stimuli produced exponents of 0.68 (.95 CI = 0.62-0.74) for men and 0.5 7 (.95 CI = 0.52-0.62)for women. Findings were similar in Experiment 2, indicating that individuals tended to overshoot and then undershoot desired force production through perceptual force ranges of 10-90% of maximal forces and that force production grew more slowly than perceptual stimulus cues. The results of the present study, along with findings from past research, indicate that production of submaximal force using perceptual cues or stimuli display a great deal of specificity. This specificity is related to type of contraction, amount of muscle mass involved, and number and types of stimuli.