Selecting the retail price: Some comments on an unavoidable decision

This article explores the judgments employed in the getting of productive retail prices.     

Learning from our own lessons: pre-service teachers’ narratives of teaching as an experiment

Pre-service teachers need to develop habits of mind that allow them to grow as new teachers. This article describes an elementary mathematics methods course in which teaching as an experiment was used a framework for pre-service teachers to participate in action research by developing learning goals, observing and analyzing student thinking, hypothesizing and enacting teaching strategies, and reflecting on the effectiveness of a lesson. Through analysis of reflections and lesson plans, the article explores three groups of pre-service teachers’ reflections on teaching as well as their confidence across the semester. By treating lessons as experiments, the pre-service teachers were able to develop appropriate teaching responses over time as well as gain confidence in their abilities.     

An experimental test of an extended discretion laboratory approach for university general biology

This was an experiment to test the extended discretion laboratory approach (ED) versus a guided-inquiry (GI) approach for teaching biology in a university setting. It had previously been found productive in a high-school setting. The approach provides considerably less specific procedure for the students to follow than did a guided-inquiry approach and required relatively high independence. Four hundred sixty-nine students taking university introductory biology were randomly assigned to using either the ED learning approach or one characterized as guided inquiry for one semester. Three measures were taken to verify that instructional treatments followed the two approaches. All indicated qualitative and quantitative differences between ED and GI approaches in the direction predicted by the operational definitions. The criterion variables were (1) student scores on a multiple-choice laboratory exam, (2) student scores on laboratory reports, and (3) student scores on six laboratory quizzes given during the semester. The only criterion variable which showed significant differences between groups (laboratory-report scores) also showed significant group-by-instructor interaction. The hypothesis of no difference therefore stood unrejected for all criterion variables. Since the ED approach appears to produce equivalent learning gains in understanding of biology laboratory concepts compared to a guided-inquiry approach, this approach should still be considered for laboratory teaching, because it purports to train for discretionary use of resources during instruction in addition to the conventional development of laboratory concepts.     

The Development of Affiliative and Agonistic Social Patterns in Differentially Reared Monkeys

Bonnet macaques that had been reared from 3 to 6 months of age in experimental environments that appeared to adversely affect their ability to separate from mother to explore a novel physical environment in dyadic assessments shortly after the rearing experience were tested during late adolescence, an average of 2.5 years later, under conditions of increasing unfamiliarity and complexity of the social milieu. 6 monkeys, the low-foraging-demand (LFD) group, were reared by mothers having constant easy access to food during the experimental rearing period. Another 6 monkeys, the variable-foraging-demand (VFD) group, were reared by mothers having a foraging task that varied between easy and difficult in 2-week blocks during the experimental rearing period. Although no treatment group differences were evident during the initial rearing period, during subsequent social challenges VFD monkeys exhibited a diminished capacity for affiliative social engagement relative to LFD monkeys and were socially subordinate to LFD monkeys.     

THE CONCEPT OF FUNDAMENTAL EDUCATIONAL CHANGE

A bstract .  In this essay, Leonard Waks contributes to a reconceptualization of "fundamental educational change." By distinguishing sharply between educational change at the organizational and the institutional levels, Waks shows that the mechanisms of change at these two levels are entirely different. He then establishes, by means of a conceptual argument, that fundamental educational change takes place not at the organizational, but rather at the institutional level. Along the way Waks takes Larry Cuban's influential conceptual framework regarding educational change as both a starting point and target of appraisal.     

Pigeons and rats observe signals of when but not where food will occur

Pigeons and rats were exposed to a mixed variable-time extinction schedule of reinforcement. During the variable-time component of the schedule, response-independent food was delivered at either a left or a right feeder. The animals were allowed to perform observing responses to produce either stimuli paired with the component of the mixed schedule that was in effect (temporal information) or stimuli paired with the feeder that might deliver food (spatial information). Only stimuli conveying temporal information reinforced observing. This result contradicts a prediction of the “information hypothesis” of observing, but is consistent with various conditioned-reinforcement interpretations of observing.     

Phonology constrains the internal orthographic representation

Four experiments explored the composition and stability of internalorthographic representations of printed words. In three experiments,subjects were presented on successive occasions with words that wereconsistently spelled correctly or were consistently misspelled. On thesecond presentation, subjects were more likely to judge both kinds ofwords as correctly spelled than on the first presentation, suggesting thattheir preexperimental orthographic representations had been altered tomatch what they had seen on the first presentation. However, onlymisspellings that were consistent with the correct phonology wereaccepted; spellings that altered the phonology were rarely accepted,suggesting that some parts of the orthographic representation are lessstable than others. Also, subjects' reliance on orthographic vs.phonological memory when judging a word's spelling was affected by thekinds of other misspellings in the list. Lists that contained somephonologically implausible spellings for real words (e.g., *assostance)induced subjects to rely more on phonological plausibility when judgingthe correctness of other words in the list and less on orthographic memory.An individual grapheme in an internal orthographic representation wasunstable when there were many phonologically acceptable alternatives forit. The results are contrary to the view that the strength of an internalrepresentation is uniform across all its graphemes and is a function only ofvisual experience with the printed form. Results were interpreted in thecontext of a theory that considers spelling knowledge to be a by-productof the reading process, a process that involves phonological analysis.     

Negotiating uncertain economic times: Youth employment strategies in England

Higher education is commonly understood as the gateway to better, higher‐paying jobs. This paper draws on longitudinal survey and interview data to explore how different groups of young people, those who left school at 18 and those graduating from higher education, negotiated pathways into employment or otherwise during the recent economic recessionary climate in England. While a mix of employment and unemployment featured in both groups, with temporary and unstable contracts more common than skilled and secure jobs, our evidence reveals that those with degrees were less likely to be in work at the ages of 22 to 23 than those who left school to enter employment at 18. In some contradistinction to popular discourses on the employability benefits of higher education therefore, entering paid work at 18 was a more effective strategy for being in employment five years later than proceeding into higher education.