A note on some reinforcing properties of university lectures

Contingency management systems in university courses have sometimes assigned the role of reinforcing stimulus to lectures and demonstrations. Attending a lecture was made contingent upon having previously finished certain course assignments. The present paper investigated some variables that control student attendance at lectures. Attendance remained high throughout each course at those class meetings where quizzes contributing to course grades were given or where impending quizzes were discussed. Attendance at lectures over the reading assignments or over material unrelated to course quizzes rapidly declined. When students were given course credit for attending these lectures, or when the lectures included information for future quizzes, attendance increased. When attending these lectures was made contingent upon having completed certain assignments the prior week, no increase in assignment completion was noted and the attendance at the lectures decreased even further. All lectures were given during one class meeting each week. Attendance at the other class meetings during the week remained stable.     

Interteaching: the impact of lectures on student performance

Several studies suggest that interteaching improves student learning more than traditional lectures, but few have examined which components of interteaching contribute to its efficacy. We examined whether the lecture component of interteaching affected students' exam grades and cumulative point totals in a research methods course. Although students who received lectures had consistently higher exam scores than students who did not, the differences were statistically significant on only 2 of 5 exams. Students who received lectures, however, earned significantly more points during the semester.     

The initial interview—Part II

Compiled and edited from lectures on Psychoanalytic Technique given by the late Karen Horney at the American Institute for Psychoanalysis during the years 1946, 1950, 1951 and 1952. Further lectures in this series will appear in subsequent issues of the Journal.     

The quality of the analyst's attention

Compiled and edited from lectures on psychoanalytic technique given by the late Karen Horney at the American Institute for Psychoanalysis during the years 1946, 1950, 1951, and 1952. Further lectures in this series will appear in subsequent issues of the Journal.     

Dreams

Compiled and edited from lectures on Psychoanalytic Technique given by the late Karen Horney at the American Institute for Psychoanalysis during the years 1946, 1950, 1951, and 1952. Further lectures in this series will appear in subsequent issues of the Journal.     

Creative Reappropriation: Barth's Use of Calvin in the Münster Ethics (1928/29)

This article demonstrates Calvin's impact upon Barth's ethics through a close reading of Barth's MÏnster lectures on ethics. Already in these early lectures Barth insisted on the coherence of dogmatic and ethical reflection, and developed the basic structure and some characteristic themes of his mature ethical reflection in the Church Dogmatics . By showing the ways in which Barth was influenced by Calvin in these formative first ethics lectures the case is made that a thorough understanding of Calvin's theology is necessary for a correct appreciation of Barth's ethics and of his theology as a whole.     

Interpretations

Compiled and edited by Ralph Slater from lectures on psychoanalytic technique given by the late Karen Horney at the American Institute for Psychoanalysis during the years 1946, 1950, 1951 and 1952. Further lectures in this series will appear in subsequent issues of the Journal.     

Boltzmann's Philosophy Notes for Three Lectures (Fall 1903)

It is necessary to distinguish between Boltzmann’s original lecture notes, his extemporaneous lectures, the fair copy of philosophy lectures 3 to 18 by an unknown hand which are mostly on mathematics, and the multi-published versions which only include lectures 1 and 2. There is a difference between his real thought in his notes (or “honne” in Japanese) and what seems to have survived in lectures 1 and 2 for public consumption (“tatamae”). We have stuck with honne, but where it is too abbreviated to make initial sense, we have put it in grammatical and intelligible form as what we think he most probably intended or believed. It was precisely his linguistic philosophy and the relativistic and pragmatic way of presenting it which was largely suppressed or at least toned-down in the fair copy and published versions. Listeners remembered how witty he was when speaking, and the shortened published accounts are also interesting, but his first thoughts, his honne, before prudence set in will interest most readers, though alas as happens with notes there is also some extraneous material. In translating most of the notes for the first three lectures we have ended where mathematics begins to predominate. This revised version was published online in June 2006 with corrections to the Cover Date.     

The Happy Truth: J. L. Austin's How To Do Things With Words

This article aims to disrupt received views about the significance of J. L. Austin's contribution to philosophy of language. Its focus is Austin's 1955 lectures How To Do Things With Words . Commentators on the lectures in both philosophical and literary-theoretical circles, despite conspicuous differences, tend to agree in attributing to Austin an assumption about the relation between literal meaning and truth, which is in fact his central critical target. The goal of the article is to correct this misunderstanding and to show that Austin is deeply critical of a picture of correspondence between language and the world which nearly half a century after he delivered his lectures continues to structure philosophical discussions of language.     

Boltzmann on Mathematics

Boltzmann’s lectures on natural philosophy point out how the principles of mathematics are both an improvement on traditional philosophy and also serve as a necessary foundation of physics or what the English call “Natura Philosophy”, a title which he will retain for his own lectures. We start with lecture #3 and the mathematical contents of his lectures plus a few philosophical comments. Because of the length of the lectures as a whole we can only give the main points of each but organized into a coherent study. Behind his mathematics stands his support of Darwinian evolution interpreted in a partly Lamarckian way. He also supported non-Euclidean geometry. Much of Boltzmann’s analysis of mathematics is an attempt to refute Kant’s static a priori categories and his identification of space with “non-sensuous intuition”. Boltzmann’s strong attention toward discreteness in mathematics can be seen throughout the lectures. Part II of this paper will touch on the historical background of atomism and focus on the discrete way of thinking with which Boltzmann approaches problems in mathematics and beyond. Part III briefly points out how Boltzmann related mathematics and discreteness to music. This revised version was published online in June 2006 with corrections to the Cover Date.     

Husserl's Logical Grammar

Lecture notes from Husserl's logic lectures published during the last 20 years offer a much better insight into his doctrine of the forms of meaning than does the fourth Logical Investigation or any other work published during Husserl's lifetime. This paper provides a detailed reconstruction, based on all the sources now available, of Husserl's system of logical grammar. After having explained the notion of meaning that Husserl assumes in his later logic lectures as well as the notion of form of meaning as it features in ‘doctrine of the forms of meaning’, I present a system of rules that describes all the various forms of meaning that Husserl singles out in his lectures.     

Contributions of moral education lectures and moral discussion in Hong Kong secondary schools

Moral education in the traditional form of classroom didactic lectures in secondary schools has been prevailing in Hong Kong since the initiation of moral education in the 1980s. However, such a traditional form has not received credit from research in the West. Instead, discussion of moral issues would be a more effective way of moral education than would didactic lectures. Because of the differential ways of moral education in Hong Kong, findings from other places can be subject to a test in Hong Kong. As such, this study employed panel data from 19,069 secondary school students in Hong Kong to analyze the impacts of moral education on moral commitment to sustain societal interests. Findings indicated a weak contribution of moral discussion and an even weaker contribution of moral education lectures to moral commitment. These findings therefore echo those in other places and suggest that real-life moral education contributes in the expected way, albeit weakly.     

Improving lecture comprehension: Effects of a metacognitive strategy

In previous research self-questioning strategies have been found to significantly improve reading comprehension, presumably because of the metacognitive nature of the self-questioning process. The purpose of the present study was to determine whether this metacognitive strategy also enhances lecture comprehension, that is, comprehension of non-text, orally presented material. In a self-questioning combined with reciprocal peer-questioning condition, ninthgraders were trained to pose questions for themselves during classroom lectures; following the lectures, they used their questions to engage in reciprocal peer-questioning and responding. Students in a self-questioning only condition also engaged in self-questioning during the lectures and then answered their own questions; in a review condition, students discussed the lecture material in small cooperative groups; and in a control group students reviewed the lecture material independently. On post-practice and 10-day maintenance tests participants in the self-questioning with reciprocal peer-questioning and the self-questioning only strategy groups showed lecture comprehension superior to that of participants in both the discussion review and control groups. These results suggest that: use of a self-questioning strategy can improve high school students' comprehension of lectures; students can maintain this strategy when external prompts are removed; and this metacognitive strategy can be readily taught to high school students and incorporated into their real-world classroom learning environment.     

Background sound pressure fluctuations (5 DB) from overhead ventilation systems increase subjective fatigue of university students during three-hour lectures.

During each of four successive sessions (once per week), 21 university students attended 3-hr. lectures. During alternative weeks the fans of the room's ventilation system were either on or off. When operating, they generated an average sound pressure that varied continuously between 60 and 65 dB. The dominant frequency of this 5-dB amplitude modulation of sound pressure was within the electroencephalographic range (5 Hz to 25 Hz). At the end of each hour of the lecture for each session each student estimated on 7-point summated rating scales fatigue (none to maximum) and concentration (poor to excellent). As a group, the students reported more fatigue during lectures when the fans were operating relative to lectures when the fans were not operating. This environmental effect explained about 30% of the variance in fatigue ratings and may be sufficient to affect adversely the attention of students within these settings.     

Wandering eyes: Eye movements during mind wandering in video lectures

Video lectures are increasingly prevalent, but they present challenges to learners. Students' minds often wander, yet we know little about how mind wandering affects attention during video lectures. This paper presents two studies that examined eye movement patterns of mind wandering during video lectures. In the studies, mind wandering reports were collected by either self-caught reports or thought probes. Results were similar across the studies: mind wandering was associated with an increased allocation of fixations to the instructor's image. For fixations on the slides, the average duration increased but the dispersion decreased. Moreover, preliminary evidence suggested that fixation duration and dispersion can diminish soon after self-caught reports of mind wandering. Overall, these findings help advance our understanding of how learners' attention is affected during mind wandering and may facilitate efforts in objectively identifying mind wandering. Future research is needed to determine if these findings can extend to other instructional formats.     

THE VOCABULARIES OF ACADEMIA

Abstract— It has been demonstrated that humanists are far more likely to use filled pauses ("uh,""ah," or "um") during their lectures than are social or natural scientists This finding has been interpreted in terms of the hypothesis that filled pauses indicate time out while the speaker searches for the next word or phrase Based on the assumption that the more options at a choice point, the more likely a speaker will say "uh," it is hypothesized that the humanities are characterized by richer vocabularies (i e, more synonyms) than are the sciences An analysis of the number of different words used in lectures and in professional publications indicates that this is indeed the case Scientists consistently use fewer different words than do humanists Further, the number of different words correlates positively with the frequency of saying "uh" during lectures These findings are not restricted to academics, for in newspaper accounts, journalists use fewer different words in stories about science than in stories about the arts     

The structuralist view of mathematical objects

This paper is based on lectures given to meetings of the Society for Exact Philosophy in Toronto, May 17, 1985, and of the Association for Symbolic Logic in Washington, DC, December 29, 1985. Some of the material had been presented in lectures at Dartmouth College in 1981 and at the University of Padua in 1983. I am indebted to comments from all four audiences, and also to correspondence with Michael Resnik and especially W. W. Tait. This paper was written while I was at Columbia University, to which I and it owe much. Support of the John Simon Guggenheim Memorial Foundation is gratefully acknowledged.     

Equivalence of Consequence Operations

This paper is based on Lectures 1, 2 and 4 in the series of ten lectures titled “Algebraic Structures for Logic” that Professor Blok and I presented at the Twenty Third Holiday Mathematics Symposium held at New Mexico State University in Las Cruces, New Mexico, January 8-12, 1999. These three lectures presented a new approach to the algebraization of deductive systems, and after the symposium we made plans to publish a joint paper, to be written by Blok, further developing these ideas. That project was still incomplete when Blok died. In fact, there is no indication that he had prepared a draft of the paper, and we do not know what new material he intended to include. I am therefore not in a position to complete the project as he had envisioned it. So, I have settled for the more limited objective of presenting the material from the three lectures, leaving to others the task of adapting the techniques used there to more general situations. Preface by Bjarni Jónsson Dedicated to the memory of Willem Johannes Blok     

Ideology,inquiry, and antiquity: a critical notice of Lloyd's The Ideals of Inquiry: An Ancient History

A discussion of Lloyd's Tarner Lectures at Trinity College. The importance of Lloyd's previous scholarship is characterized and these sweeping, erudite lectures are placed in the context of that scholarship. In the broadest terms, the lectures are a call to culturally and historically comparative study of human reasoning. At their heart is a comparative history of scientific theorizing from the ancients through to modern science. Lloyd rejects the positivist picture, and the view of modern and ancient science as discontinuous; he urges scholars to undertake comparative work on the ancient sciences in different traditions. This critical notice evaluates Lloyd's view and raises several questions for further reflection.     

Overcoming overconfidence in learning from video-recorded lectures: Implications of interpolated testing for online education

The video-recorded lecture represents a central feature of most online learning platforms. Nonetheless, little is known about how to best structure video-recorded lectures in order to optimize learning. Here, we focused on the tendency for high school and college students to be overconfident in their learning from video-recorded modules, and demonstrated that testing could be used to effectively improve the calibration between predicted and actual performance. Notably, interpolating a lecture with repeated tests helped to boost actual performance to the level of predicted performance, whereas a single test following the lecture served to lower unrealistic judgments of learning. The value of improving performance to match predictions of learning and other avenues for future research regarding meta-comprehension of video-recorded lectures is discussed.