Spacing extinction trials alleviates renewal and spontaneous recovery

Studies of extinction in classical conditioning situations can reveal techniques that maximize the effectiveness of exposure-based behavior therapies. In three experiments, we investigated the effect of varying the intertrial interval during an extinction treatment in a fear-conditioning preparation with rats as subjects. In Experiment 1, we found less fear at test (i.e., more effective extinction) when extinction trials were widely spaced, relative to intermediate or massed extinction trials. In Experiment 2, we used an ABA renewal procedure and observed that spaced trials attenuated renewal of conditioned fear relative to massed trials. In Experiment 3, we used a similar design, but instead of changing the physical context at the time of testing, we interposed a retention interval after the extinction treatment to produce a change in the temporal context. The results showed less spontaneous recovery of fear after spaced than after massed extinction trials. These results suggest that extinction is more enduring when the extinction trials are spaced rather than massed. Although the benefits of spacing trials are small when there is no contextual change from extinction to testing, a change in either physical or temporal context following massed extinction trials leads to a recovery from extinction, which is reduced when the trials are spaced.     

Judging readability

Individuals are frequently called upon to judge the readability of written text. The accuracy of such judgments, studies show, ranges from high to low. This paper provides another look at the problem, based upon the judgments of 56 professional writers on five passages of text taken from a reading test. The judges were asked to rank the five passages from most readable to least readable. The results showed wide variability in the judgments. Only a few of the judges were able individually to put the passages in the tested order of readability, but the consensus of the entire group put them in exactly that order. Further examination of the results suggested that a relatively small number of gross errors in judgment were made. Accuracy of judgments, it appeared, might greatly increase with selection and/or training of judges, a procedure followed in certain studies where highly accurate judgments had been found. A readability formula was suggested as an accurate and convenient way of getting readability scores under most circumstances. Use of a formula might also, it was suggested, help a judge to increase his accuracy, but human interpretation of the scores was still felt to be needed.     

An Attempt To Measure and Facilitate Counselor Effectiveness

This study evaluated the use of Interpersonal Process Recall (IPR) with videotape (as opposed to more traditional methods) in improving the effectiveness of practicum students. The practicum students were randomly assigned to one of three treatment groups: (a) a video-IPR, (b) an audio-IPR, and (c) supervision using an audiotape of a regular counseling session. Three judges were asked to rate videotapes of 54 practicum students conducting their final counseling session with a coached client. The judges rated two time-samplings of the final session by means of a scale consisting of three parts: (a) 33 behavioral and feeling items, (b) a single global evaluation representing the normal curve with the baseline divided into eight equal segments, and (c) a request for the judges to write any adjectives or phases that they felt described the practicum student. The results were not as convincing as had been anticipated. This article discusses possible reasons that the results were not convincing and implications the results have for future research within this area of counselor education.     

Simulated tennis matchplay in a controlled environment

The aim of this study was to develop an exercise protocol to simulate tennis matchplay on a 'category 2' surface. Match analyses were used to form the basis for the design of the protocol. The protocol involved playing against a tennis ball serving machine. Part A of the protocol comprised 92 min 46 s of simulated tennis matchplay; Part B consisted of continuous hitting to the point of 'volitional fatigue' or when the required hitting frequency for two consecutive ball feeds could no longer be maintained. Ten elite tennis players (5 males, 5 females) volunteered to participate in the study, which was performed on an indoor tennis court (Matchplay, En-Tout-Cas). Their age, body mass and estimated maximal oxygen uptake were as follows: males, 21.7 +/- 1.0 years, 73.6 +/- 2.6 kg and 58.0 +/- 1.7 ml x kg(-1) x min(-1), respectively; females, 21.9 +/- 1.3 years, 62.3 +/- 2.0 kg and 42.2 +/- 0.7 ml x kg x min(-1), respectively (mean +/- sx). Heart rate, change in body mass and time to volitional fatigue were monitored. The heart rate responses of the participants to the simulated matchplay (range: 140-157 beats x min(-1), 73-81% peak heart rate) were consistent with the results of previous studies, for 'actual' matchplay. This protocol was successful in simulating similar physiological responses in Part A to 'actual' matchplay on a 'category 2' surface, in a controlled environment; it was also a sensitive evaluation tool of skilled performance in Part B. The current protocol may be used as a baseline protocol for studying the influence of, for example, training and dietary intervention on performance.     

Studies on the use of fear appeals: A summary and analysis

While a number of studies have been concerned with the effects of varying intensities of fear appeals on audience response, interpretation of the findings poses a number of problems. The author summarizes some of the major research thus far conducted, analyzes several of the problems involved in interpreting the findings of these studies, and provides some tentative suggestions for fruitful approaches to the study of the effects of fear‐arousing appeals.     

Interventions supporting baccalaureate achievement of Latinx STEM students matriculating at 2-year institutions: A systematic review

Numerous national reports have identified the importance of significantly improving pathways that begin with Latinx students enrolling in 2-year institutions and ultimately completing baccalaureate degrees in STEM fields at 4-year institutions. Many programs using multiple interventions have been designed, implemented, and studied to achieve this goal. To synthesize what has been learned from studies of these programs, this article presents a systematic review of published studies of programs designed to support Latinx student success in 2-year institutions and successful transfer to 4-year institutions, particularly for STEM majors. A total of 49 quantitative, 9 qualitative, and 16 mixed-methods studies published as reports, articles, or dissertations since 1980 were identified that met the criteria for the review. Studies covered a wide range of interventions, including mentoring, counseling, advising, study groups, tutoring, scholarships, orientations, career services, undergraduate research, articulation agreements, and transfer programs. Individually, these studies report positive influences on student success outcomes, including 2- and 4-year graduation, transfer to a 4-year institution, retention, and success in individual courses. However, the number of qualifying studies was surprisingly small, considering the importance of improving success of Latinx students and the length of time during which the problem has been repeatedly emphasized. Few interventions have been undertaken from explicitly assets-based perspectives or theoretical frameworks. The lack of explicit frameworks underlying interventions—combined with a sole/primary focus on students—suggests many interventions were approached from a deficit-based perspective. Further, the study found no pattern of replication studies that might confirm effectiveness of potentially promising interventions. Based on our analysis of evaluations presented in the studies, it does not appear that the research community has developed agreed-upon methods to evaluate commonly agreed-upon outcomes. Finally, no intervention has been sufficiently supported that widespread implementation could be recommended.     

Media Production

Barrie Redfern's Local Radio (London and New York: Focal Press, 1978—$8.95, paper)

Norman Crowhurst's How to Select and Install Your Own Speakers (Blue Ridge Summit, Pa.: TAB Books, 1979—49.95, and also in paperback)

Hindman, Janes, Larry Kirkman, and Elizabeth Monk. TV Acting: A Manual for Camera Performance (1979—$15.50/7.95 , 191 pp.)

Williamson, Daniel R. Newsqathering. (1979—$13.50/7.50 , 250 pp.)

Stonecipher, Harry W. Editorial and Persuasive Writing: Opinion Functions of the News Media (1979—$13.95/7.95, 256 pp.)

Richard Robinson's The Video Primer: Equipment, Production, and Concepts (New York: Quick Fox, 1979—$14.95/6.95)

Marshall Lee's Bookmaking: The Illustrated euide to Design/production/editing (New York: R.R. Bowker, 1979—$25.00)

Lenny Lipton's Lipton on Filmmaking (New York: Simon and Schuster, 1979—$7.95, paper, with a hardback also available)

Philip C. Geraci's Photojournalism: Making Pictures for Publication (Dubuque, Iowa: Kendall/Hunt Publishing, 1978—$12.95, paper)     

Performance Indicators as a Foundation of Institutional Autonomy: Implications for Higher Education Institutions in Europe

There has developed moderate discussion in European higher education about the use of performance indicators for both accountability and evaluation purposes. This paper begins by summarizing governmental expectations, institutional objections, and several of the controversies surrounding performance measures. We then report on using performance indicators for both external accountability and strategic planning in a case study of a public research extensive university in the United States, including how the flows of resources and students have changed following the use of institutional performance measures in strategic planning.