Mental Effort and Performance as Determinants for the Dynamic Selection of Learning Tasks in Air Traffic Control Training

The differential effects of four task selectionmethods on training efficiency and transfer incomputer-based training for Air Traffic Controlwere investigated. A non-dynamic condition, inwhich the learning tasks were presented to theparticipants in a fixed, predeterminedsequence, was compared to three dynamicconditions, in which learning tasks wereselected on the basis of performance, mentaleffort, and a combination of both (i.e., mentalefficiency). Using the 3-factor mentalefficiency formula of Tuovinen and Paas (2004, this issue), the hypothesis that dynamic taskselection leads to more efficient training thannon-dynamic task selection was confirmed.However, the hypothesis that dynamic taskselection based on mental efficiency leads tomore efficient training than dynamic taskselection based on performance or mental effortalone was not supported. The results arediscussed in light of the theoretical frameworkand suggestions are given for futureresearch.     

Hands-on, Demonstration, and Videotape Laboratories for Non-Science Majors in a Food Science Course: Achievement, Attitude, and Efficiency

ABSTRACT: Student achievement, attitude, and instructional efficiency were determined for hands-on and for live and videotape demonstration laboratories for nonscience majors. Each of 3 laboratory sections experienced 3 different teaching methods for one 4-wk unit. No significant difference in achievement was found among the laboratory methods. An attitude survey indicated a significant positive change in attitude toward live demonstration, with a negative change toward the hands-on and videotape methods. Videotape demonstration was the most economical method based on monetary and time expenditures, followed by live demonstration. Findings support using a variety of laboratory teaching methods, with the particular method based on appropriateness to students' learning needs; particular information, lesson, or unit of study taught; and instructional purpose.     

Author index

Authors Index

Author index     

Evaluation of the Long-Term Impact of a University High School Summer Science Program on Students' Interest and Perceived Abilities in Science

Many biomedical research universities have established outreach programs for precollege students and teachers and partnerships with local school districts to help meet the challenges of science education reform. Science outreach programs held in university research facilities can make science more exciting and innovative for high school students and can offer them much more insight into the nature of science and laboratory research than is available in most high school science courses. This paper describes a long-term follow-up study of high school students enrolled in the Summer Science Academy program at the University of Rochester to investigate the program's impact on students' perceived abilities in higher level science courses, on participation in extracurricular science programs, as well as the program's impact on student interest in pursuing a career in science. Students' exposure during SSA to advanced laboratory techniques and their participation in authentic science investigations provided them with a very positive hands-on experience. Students who attended the program indicated that it provided a positive influence on their performance in advanced science courses, as well as their decision to participate in other science programs and their desire to pursue a career in science.     

Combining Economic and Conjoint Analysis to Determine Optimal Academic Services

In today's era of global competition, organizations must manage their functions and activities in a manner such that they are responsive to customers' needs and can provide excellence in service to the customer while also being efficient and cost conscious. These issues are extremely common in corporate organizations, but such concerns are equally relevant in service industries, including institutions of higher education. This study is conducted at a private, undergraduate institution of higher education. We utilize focus group evaluation and conjoint analysis combined with economic analysis in the form of a newly designed preferred utility economic cost diagram to pick the ideal services that should be provided to enrolled students at the institution. The package of ideal services accounts for preferred utility expressed by students and a new methodology (preferred utility function) to balance these against financial considerations to optimize services and financial gains for a college adult education program. This combination of focus groups and mathematical techniques can be easily employed by educational institutes.     

Some interesting mathematical gems

As the title of the article indicates, I am going to point out certain bright and beautiful pieces of mathematical work which can be treated as gems. Of course, choice of these pearl-like items is subjective depending on my understanding and appreciation (or lack of it) of the areas of mathematics in which I find interest.     

Effects of preexposure and retention interval placement on latent inhibition and perceptual learning in a choice-maze discrimination task

In two experiments, we examined how preexposure to discriminative stimuli and introduction of a 21-day retention interval affected the latent inhibition (LI) and perceptual learning (PL) of rats in a choice-maze discrimination task. Experimental groups were preexposed to three wall patterns, one in each of three arms of a maze. Control groups were preexposed only to white arms. PL groups were trained to discriminate A versus B, and LI groups, to discriminate A or B versus C. The A and B patterns shared many elements not shared with the C pattern. In Experiment 1, both at the end of training and after the subsequent retention interval, the PL groups performed better than controls, whereas the LI groups performed worse. In Experiment 2, inserting the 21-day retention interval between preexposure and discrimination training disrupted final measures of LI but not PL performance. Implications for current concepts of PL and LI are discussed.     

Firms’ genetic characteristics and competence-enlarging strategies: A comparison between academic and non-academic high-tech start-ups

This paper argues that academic high-tech start-ups exhibit peculiar “genetic characteristics” that leave an enduring imprint on firm development. We formulate a series of hypotheses on the effects of such genetic characteristics on the post-entry strategies that academic high-tech start-ups adopt to enlarge their initial competence endowments. In the empirical section, we use matched-pair statistical techniques and run several regressions to test the theoretical hypotheses. Our findings contribute to the literature on the antecedents of the strategies adopted by academic high-tech start-ups. They also allow us to derive implications for academic entrepreneurs, university managers and policy makers.     

Changes in letter sound knowledge are associated with development of phonological awareness in pre‐school children

Letter sound knowledge, which, together with phonological awareness, is highly predictive of pre‐school children's reading acquisition, derives from children's knowledge of their associated letter names and the phonological patterns of those names. In this study of 66 monolingual pre‐school children we examined whether phonological patterns between letter names and their associated sounds might be differentially associated with aspects of phonological awareness. Results suggest that rudimentary levels of phonological awareness may facilitate the learning of letter sound associations. However, more explicit phonological awareness appears to be linked bi‐directionally with letter sound knowledge with diverse name‐sound associations, with letter sound associations that do not follow regular patterns (e.g. ‘juh’ for ‘j’ and ‘huh’ for ‘h’) most closely associated with performance in more complex phoneme awareness tasks.