Children's Sleep Behavior Scale: normative data on 870 children in grades 1 to 6

A 22-item Likert-type rating scale for parents was developed for screening a broad range of specific sleep-related behaviors of elementary school children. The prevalence of these behaviors was reported by parents for boys (n = 459) and girls (n = 411) in three age groups, less than 8.5 yr., between 8.5 and 11.5 yr., and greater than 11.5 yr. For all age groups, the most prevalent behaviors were restlessness, waking up at night, pleasant dreams, getting up to go to the bathroom, talking while asleep, and complaints about not being able to sleep, while the least frequent were rhythmical movements and crying while asleep. The self-reports suggest that many of the behaviors are underestimated in the literature. Some sex and age differences were found, but the number of siblings, birth order, change in family structure, and educational status of father and mother were unrelated to the sleep variables. Test-retest reliabilities of self-reports by these parents to individual items were adequate.     

Suppositions in argumentation

The atheist who begins to argue his case by saying, Suppose there is an omniscient Being of the sort in which Christians believe ... is employing a very familiar move in argumentation. However, most books on argumentation theory ignore suppositions completely. Searle omits suppositions entirely from his taxonomy of speech acts and this appears to lead to a similar omission in Speech Acts in Argumentative Discussions by van Eemeren and Grootendorst.This paper argues that suppositional argument is elegant, powerful and extremely common, that the correct way to understand it is based on Gottlob Frege's distinction between asserted and unasserted propositions and hence that suppositions are neither assertions nor (and this is more important) assertives. The paper discusses the connections between suppositions and conditionals; it argues that argumentation theory which ignores suppositions is systematically misleading; and it concludes by indicating some possible developments in argumentation theory.Revised version of a paper delivered at the University of Amsterdam, April 3, 1987.     

Mass media effects on sex role attitudes of incarcerated men

This study explores the impact of the mass media on sex role attitudes of men incarcerated in a maximum security prison. It seems likely that prisoners' attitudes may be shaped by the media during their isolation. There is the possibility that the incarceration experience itself may bolster any media effects and should therefore be explored. Moreover, media socialization with regard to sex roles may help a prisoner's reentry into society by making the men aware of the current achievements of women in society. On the other hand, a narrow presentation of women's roles by the media may theoretically hinder a prisoner's readjustment to the social scene. This paper also compares sex role attitudes among these men to such attitudes found in general population studies.     

College Students Use Implicit Personality Theory Instead of Safer Sex1

Many college students engage in high levels of unsafe sexual behavior that puts them at risk for HIV infection. To better understand the dynamics underlying college students' unsafe behavior, focus group discussions were conducted with 308 students (146 men and 162 women). The results showed that, instead of consistently using condoms, many college students use implicit personality theories to judge the riskiness of potential sexual partners. Specifically, partners whom college students know and like are not perceived to be risky, even if what students know about these individuals is irrelevant to HIV status. The students determine the riskiness of partners they do not know well based on superficial characteristics that are also generally unrelated to HIV status. Therefore, AIDS prevention interventions for college students must expose the ineffectiveness of the students' use of implicit personality theories to determine potential partners' riskiness, and the “know your partner” safer sex guideline should be abandoned.     

A COMPARISON OF TWO APPROACHES FOR IDENTIFYING REINFORCERS FOR PERSONS WITH SEVERE AND PROFOUND DISABILITIES

The development of effective training programs for persons with profound mental retardation remains one of the greatest challenges for behavior analysts working in the field of developmental disabilities. One significant advancement for this population has been the reinforcer assessment procedure developed by Pace, Ivancic, Edwards, Iwata, and Page (1985), which involves repeatedly presenting a variety of stimuli to the client and then measuring approach behaviors to differentiate preferred from nonpreferred stimuli. One potential limitation of this procedure is that some clients consistently approach most or all of the stimuli on each presentation, making it difficult to differentiate among these stimuli. In this study, we used a concurrent operants paradigm to compare the Pace et al. (1985) procedure with a modified procedure wherein clients were presented with two stimuli simultaneously and were given access only to the first stimulus approached. The results revealed that this forced-choice stimulus preference assessment resulted in greater differentiation among stimuli and better predicted which stimuli would result in higher levels of responding when presented contingently in a concurrent operants paradigm.     

ANALYSIS OF FREE-TIME CONTINGENCIES AS POSITIVE VERSUS NEGATIVE REINFORCEMENT

Providing a short break contingent on completed work may increase responding through positive reinforcement (e.g., access to preferred activities) or negative reinforcement (e.g., escape from work). In this investigation, three analyses conducted with a boy with profound mental retardation showed that (a) a 20-s break increased responding more than a positive reinforcer (cola) did, and (b) the reinforcing effects of a 20-s break were affected by the availability of positive reinforcers during the break.     

FURTHER ANALYSIS OF THE RELATIONSHIP BETWEEN SELF-INJURY AND SELF-RESTRAINT

It has been suggested that self-restraint, a phenomenon often correlated with self-injurious behavior (SIB), may be maintained by negative reinforcement in the form of escape from the aversive properties of SIB (e.g., pain). We examined the effects of blocking SIB (and presumably removing any aversive effects) on the self-restraint of a 19-year-old male with severe mental retardation. Consistent with the negative reinforcement hypothesis, blocking SIB resulted in near-zero levels of SIB and moderate reductions in self-restraint.     

Self-reported levels of psychopathology of drug abusers not currently in treatment

This study assessed levels of psychopathology, as measured by the Symptom Checklist-90-Revised, of drug users not in treatment. These levels were then compared with levels of psychopathology reported previously in the literature of drug users in treatment, the general population, psychiatric inpatients, and psychiatric outpatients. Results suggest that drug users not in treatment endorse significantly lower levels of psychopathology than drug users in treatment, psychiatric inpatients, and psychiatric outpatients. However, they endorse significantly higher levels of pathology than adult nonpatients and they appear most similar to adolescent nonpatients. Implications for clinical work (prevention and intervention) as well as for future research are discussed. The study also established preliminary cultural validity of SCL-90-R with Alaska Natives.     

Reading and visual search

Four experiments were conducted comparing the ways in which reading and search are affected by manipulations of word shape and word boundary. Word shape was manipulated by variations in type (normal, capitals, and alternating upper- and lowercase), while word boundary was manipulated by variations in spacing (normal, filled, and absent). The variations were combined factorially for nine space-type combinations. Experiments I and II were basic studies examining the effects of the manipulations on reading and on search, respectively. Search was found to be 2 to 2.5 times faster than reading. Reading and search both slowed to one-third of the normal speeds when spaces were removed and type altered. A significant interaction of Type by Space was found for reading but not for search. Experiments III and IV examined contextual and typographical effects on high-speed visual search through paragraphs. Form-class expectancy and target word predictability, respectively, were manipulated. In both experiments, subjects found the expected predictable words faster than the unexpected unpredictable words. The data were interpreted as providing support for the peripheral and cognitive search guidance processes hypothesized to be active in reading.     

Theory and data on developmental changes in novelty preference

The present study was designed to investigate the predictive value of an informational analysis of vicarious consequences. Two levels of amount of vicarious consequences (complete, partial) were varied with three types of vicarious consequences (reward, punishment, reward-punishment). Each of six groups of preschool age boys and girls observed an adult male model receive one of the combinations of amount and type of vicarious consequences for his choices from a commodity preference series. A seventh group of boys and girls observed the model receive no consequences for his choices. After observing the model, each subject was asked to make his own choices from the commodity preference series and to recall the choices which the model made. In contradiction to the predictions of an informational analysis of vicarious consequences, the amount of vicarious consequences did not differentially affect the recall of modeled behavior while the type of vicarious consequences did have a differential effect.