Interpretation of instructions: A source of individual differences in analogical reasoning

Two studies were conducted to identify individual differences in the effect of instruction on strategies used to solve figural/numerical analogies. In Study 1, students aged 9, 11, 13, and 19 years were given incomplete instructions and then were assessed for (a) consistent use of an appropriate rule for solving analogies and (b) the type and number of stimulus attributes that are incorporated in those analogical rules. Use of an analogical rule increased with age and corresponded to higher scores on a psychometric test of reasoning within each age group. In Study 2, analysis of verbal protocols was used to identify the strategies of some 9- and 11-year-olds who showed a peculiar pattern of responding in Study 1. These children attended to relevant attributes but used systematic nonanalogical rules to solve problems. When provided with more specific instructions, most of these children adopted an analogical rule but failed to incorporate relevant attributes. Results indicate that selection or construction of task-relevant solution strategies from incomplete instructions may partially account for differential performance on tests of analogical reasoning.     

Instrumentation and software report: Computer-assisted coding of videotape material

The coding system described was originally devised to facilitate the analysis of mother-infant interaction. Our aims were to provide accurate measures of the duration of different activities, to enable identification of particular actions in order to carry out sequential analyses, and to allow systematic assessment and improvement of reliability. At the time recording began, there appeared to be no readily available systems which achieved all of these aims. The system described here enables coded videotape material to be examined with the assistance of a computer. This is implemented through two subsystems, those of record and playback. In the playback subsystem the behaviour units identified by a coder are mapped on to this record. This results in a protocol of behaviour on a highly accurate time base.     

The Mystery of the Mozart Effect: Failure to Replicate

The Mozart effect is the purported increase in spatial-reasoning performance immediately after exposure to a Mozart piano sonata. Several laboratories have been unable to confirm the existence of the effect despite two positive reports from the original laboratory. The authors of the original studies have provided a list of key procedural components to produce the effect. This experiment attempted to produce a Mozart effect by following those procedural instructions and replicating the procedure of one of the original positive reports. The experiment failed to produce either a statistically significant Mozart effect or an effect size suggesting practical significance. This general lack of effect is consistent with previous work by other investigators. We conclude that there is little evidence to support basing intellectual intervention programs on the existence of the Mozart effect.     

What Makes Susie Cry? A Symptom-Context Study of Family Therapy

The aim of this investigation was to examine the context of recurrent crying episodes during family therapy sessions. We tested the relative contribution of social versus individual intrapsychic variables within a 10-session, videotaped, structural family therapy. Segments of therapy before crying episodes when compared with control (non-crying) segments were found to have higher levels of the following variables: involvement with others in the room, rejection, and concern about supplies. Two family variables were also higher before crying episodes: family discussion about patient, and patient receives hostility. A stepwise discriminant function analysis using these variables indicated that family discussion about the patient was most important in signaling onset of crying. The results are discussed in terms of individual and family theories of symptom formation as illuminated through this case study.     

Reaction times for comparisons of successively presented visual patterns: Evidence for serial self-terminating search

Two-choice classification RTs were collected for eight conditions designed to vary the number of comparisons necessary between one or two visual patterns in perception and one or two in short-term memory (STM). Overall RT data supported both a serial self-terminating and parallel self-terminating model with distributed search times, while rejecting corresponding exhaustive models. Precise predictions for the parallel model proved difficult to derive; however, the serial model predicted the fine detail of the data surprisingly well. RTs suggested that Ss searched through all stimuli in memory first and that stimuli in both memory and perception were searched from right to left. Comparison times between identical stimuli were estimated to be longer than comparison times between different stimuli. Error rates increased with the number of hypothesized comparisons; predicted error rates, based on independence of rates within stages, also increased but failed to predict the empirical error rates very well.     

Neonatal sucking: Effects of quantity of the response-contingent fluid upon sucking rhythm and heart rate

The temporal organization of neonatal nutritive sucking and heart rate were studied in two consecutive 4-min periods to analyze the effects of two quantities of response-contingent fluid. One group of newborns experienced only the larger amount, a second experienced the smaller, and two other groups experienced both in counterbalanced order. Cumulative pausing time and intersuck intervals (sucking rate within bursts) were both affected by the amount of fluid delivered at each response. At the start of sucking bursts, heart rate accelerated to a stable level. Within-burst heart rates were higher with increased quantity of contingently delivered fluid. The results are discussed in relation to the distinction between nutritive and nonnutritive sucking and to previous findings on the effects of fluid sweetness upon sucking.     

Objective and subjective complexity measures for a new population of patterns

A method of generating two-element matrix patterns having varying degrees of internal constraint is described. The method was used to generate a set of 9 × 9 matrix patterns of black and white squares in approximately equal proportion, ranging from very simple to very complex. Three sets of objective complexity measures were developed, the first two within,the framework of information theory and the third based on symmetry and grouping of identical elements. Multiple regression between the objective measures and subjective complexity scale values obtained in three separate experiments indicated that one of the information measures was uniformly superior in predicting subjective complexity.     

Spirituality and Dream Work in Counseling: Clients’ Experiences

The authors suggest that focusing on dreams in counseling may be a useful framework to explore clients’ spiritual values and beliefs. Because little is known about how spirituality and dream work are integrated in practice, the purpose of this article is to document how some counselors and clients work on spirituality and dreams. Responses of clients who focused on dreams from a spiritual perspective are described and discussed. Relevant clinical issues that counselors may encounter are identified. Recommendations are made for counselors who wish to integrate spirituality and dream work in counseling.An earlier version of this article was presented at the Semi-Annual Meeting of the Association of Mormon Counselors and Psychotherapists, Salt Lake City, Utah, April 2004.     

A CROSS-CULTURAL INVESTIGATION OF INFORMATION PROCESSING1

Recherche interculturell sur le traitement de l'information. — Cette expérience fait partie d'une série d'études sur les processus cognitifs des membres de la tribu des Kpelles du Liberia : elle porte plus particulièrement sur Pestimation des quantités. A 240 sujets (120 Kpelles et 120 Américains) on a présenté, à l'aide d'un tachistoscope, des plages de points avec des durées variées d'exposition. Les plages diffèrent par le nombre (de 3 à 10) et la disposition, structurée ou aléatoire, des points. La performance des sujets américains est en général supérieure à celle des Kpelles. l'analyse montre que l'avantage global des américains est dû à : — 1) leur plus grande exactitude pour les plages qui comportent plus de points; — 2) leur plus grande exactitude relative pour des durées brèves de présentation; — 3) l'utilisation plus grande de la redondance inhérente aux plages structurées. Les AA, pensent pouvoir mettre ces résultats en relation avec les apprentissages différentiels dont chaque groupe culturel a pu faire l'expérience dans son milieu propre. Ils proposent une stratégic générale pour mener des recherches expérimentales interculturelles.