Learning disabilities in alcohol-dependent adults: a preliminary study

To determine if neuropsychological deficits, known to precede alcohol use in those genetically predisposed to alcoholism, were present in an alcoholic population, 25 male alcoholics (mean age 41.1) were interviewed concerning alcohol usage, educational difficulties in elementary school, and family history of alcoholism. Using a regression table, discrepancies between current IQ on the Wechsler Adult Intelligence Scale-Revised (WAIS-R) (Wechsler, 1981) and achievement on the Woodcock-Johnson Psycho-Educational Battery (WJB) (Woodcock & Johnson, 1977) were calculated to determine present learning status. Forty percent of the alcoholics were found to have had special education, remedial services, or repeated grade failure concurrent with a familial history of alcoholism and current discrepancies indicative of learning disability. There were no significant differences on intelligence, years of drinking, or mean grades completed in school between this group and the rest of the subjects who did not receive services in school. Conclusions were that childhood learning disorders may be related to the development of alcoholism, particularly when alcoholism is in the family, and that special educators have a role to play in the prevention and treatment of alcoholism.     

Developing guidelines for HIV antibody testing among victims of pediatric sexual abuse

The incidence of human immunodeficiency virus (HIV) infection acquired by children through sexual abuse is presently unknown. A telephone survey of 63 practitioners of pediatric sexual abuse (PSA) assessment in the five U.S. regions with highest prevalence of HIV infection was conducted to determine the present status of guidelines for HIV antibody testing of PSA victims. No formal protocol was used by any of those surveyed, and a literature review found no existing guidelines for HIV antibody testing of PSA victims. A standard set of clinical situations was presented to practitioners to assess whether a consensus exists of indications for HIV antibody testing of abused children. Seven clinical profiles with 12 criteria were presented including HIV antibody status, AIDS/ARC clinical profile, and behavioral profile of the assailant; clinical profile of the victim; pre-assault victim behavioral profile compatible with high risk of HIV infection (exclusively adolescents); parent/guardian anxiety/psychosocial profile; and profile of the assaultive act with respect to potential transmissibility of HIV. We found an 85% or greater consensus for 6 testing criteria, and based upon these propose an interim set of HIV antibody testing guidelines for PSA victims. There was no consensus about five testing criteria, but their frequent citation merits further consideration. Clinical application of interim guidelines and design of prospective studies to quantitatively evaluate them are reviewed.     

A conceptual overview of the regression discrepancy model for evaluating severe discrepancy between IQ and achievement scores

A conceptual overview of the Regression Discrepancy Model (RDM) for determining severe discrepancy between IQ and achievement scores is presented in order to enhance understanding of the model without the use of the complex mathematical equations that constitute the model. The six specific goals of the RDM are identified, and figures illustrate the manner in which the model accomplishes each goal. Figures are also provided from a RDM computer output showing the basic outcomes of the model. Advantages and disadvantages of the RDM are discussed to further promote understanding of the model.     

Reasoning about logical propositions and success in science

Students display a number of misconceptions when asked to reason about logical propositions. Rather than being random, these misconceptions are stereotypic, and relate to age, ability, and success in science. The grades in science achieved by tenth-grade general science students from two parochial single-sex schools in Australia correlated with their scores on the Propositional Logic Test. The students' ability level was consistently related to the pattern of errors they committed on that measure. Mean scores were lowest on a subtest of ability to use the biconditional and implication, higher on the disjunction, and highest on the conjunction. Success in science was predicted most strongly by the disjunction and biconditional subtests. Knowledge of the way in which a person reasons about logical propositions provides additional insights into the transformations information is subjected to as it is integrated into mental schemata.     

College attrition,student use of campus facilities,and a consideration of self-reported personal problems

Five groups of undergraduate students, Dropouts (academic dismissals), Low Stopouts (voluntary leavers with low GPA), Low Persisters (continuing students with low GPA), High Stopouts (voluntary leavers with high GPA), High Persisters (continuing students with high GPA), were compared in terms of their use of various campus facilities and their responses to a checklist of personal problems. The High Stopouts and High Persisters did not differ in use of facilities. However, among the low academic performance students, the Low Persisters made significantly greater use of facilities than the Low Stopouts, who, in turn, made significantly greater use of facilities than Dropouts. These findings, for the most part, did not appear to be related to the self-reported importance of personal problems. It was concluded that among low performance students, the broad use of campus services and facilities can be taken as a measure of student integration in the college community.     

Concept learning by pigeons: Matching-to-sample with trial-unique video picture stimuli

Pigeons were trained to match-to-sample with several new methodologies: a large number of stimuli, computer-drawn color picture stimuli, responses monitored by a computer touch screen, stimuli presented horizontally from the floor, and grain reinforcement delivered onto the picture stimuli. Following acquisition, matching-to-sample concept learning was assessed by transfer to novel stimuli on the first exposure to pairs of novel stimuli. One group (trial-unique), trained with 152 different pictures presented once daily, showed excellent transfer (80% correct). Transfer and baseline performances were equivalent, indicating that the matching-to-sample concept had been learned. A second group (2-stimulus), trained with only two different pictures, showed no evidence of transfer. These results are discussed in terms of the effect of numbers of exemplars on previous failures to find concept learning in pigeons, and the implications of the positive finding from this experiment on abstract concept learning and evolutionary cognitive development.     

Incidence and situational factors surrounding sexual assault against delinquent youths

This study reports the results of extensive interviews with an intact sample of moderately delinquent adolescents concerning their sexual assault histories. Findings indicate a surprisingly high incidence of victimization among the females interviewed which, the authors suggest, may characterize the larger population of delinquent females. The behavioral-situational contexts of reported victimization experiences are examined for salient commonalities and the following composite rape scenerio can be cast from the data: An unsupervised, 14-year-old female, who has been consuming alcohol or marijuana, is sexually assaulted, following threat and/or force, to the point of penile-vaginal penetration, by an older male friend or acquaintance (who has also consumed alcohol or marijuana) in his home or vehicle or other place where she is inherently unprotected. Some comments are offered concerning the requirements of an effective technology of child rape prevention.