Aging and working memory inside and outside the focus of attention: dissociations of availability and accessibility

Two experiments used the N-Back task to test for age differences in working memory inside and outside the focus of attention. Manipulations of the difficulty of item-context binding (Experiment 1) and of stimulus feature binding (Experiment 2) were used to create conditions that varied in their demand on working memory, with the expectation that greater demand might increase age differences in focus-switching costs and the search rate outside the focus of attention. Results showed, however, that although age differences were evident in measures of overall speed and accuracy, and the manipulations significantly affected response times and accuracy in the expected direction, the experimental manipulations had no impact on age differences. Findings instead pointed to age-related reductions in accuracy but not speed of focus-switching and search outside the focus of attention. Thus, age-related deficits appear to involve the availability of representations in working memory, but not their accessibility.     

Serving Culturally Diverse Children with Serious Emotional Disturbance and Their Families

Over the coming decades, we can expect that cultural diversity will abound within the U.S. population and the imagery of an American melting pot will long be discarded. One significance of this trend will be the imperative to account for cultural diversity in assessing the needs of children with serious emotional disturbance (SED), to ensure that assessments, diagnoses, and treatments are accurate, fair, and meaningful. To achieve that end, however, will first require that all persons in the fields of education, mental health, social services, and juvenile justice become fully prepared to support children with SED and their families, prepared to bring to the process a sophisticated understanding of the interplay between culture and social behaviors. Nothing less than that level of preparedness will enable practitioners to develop unbiased interventions that competently and sensitively weigh cultural influences and target the needs of diverse students with emotional and behavioral difficulties. In this paper, we present the need for culturally competent practitioners in the area of SED, ways in which service providers can increase their cultural knowledge, and strategies for more effective service with this population.     

Who I am and how I think: The impact of self‐construal on the roles of internal and external reference prices in price evaluations

Drawing from self-construal studies on cognitive styles as well as reference price literature, this research investigates the impact of independent versus interdependent self-construal on consumers' use of internal reference prices (IRPs) and external reference prices (ERPs) during price evaluations. Three experiments reveal that IRPs have a larger impact on price evaluations for participants who are primed with an independent (vs. interdependent) self-construal, whereas ERPs have a larger impact for participants who are primed with an interdependent (vs. independent) self-construal. The differential impact of self-construal on the use of IRPs and ERPs seems to be mediated by a generalized, perceived sense of connectedness/separateness. Implications on reference price research, self-construal and cognitive styles are discussed.     

When are moods most likely to influence consumers' product preferences? The role of mood focus and perceived relevance of moods

This program of research examined the hypothesis that moods are most likely to be used as a source of information in making evaluations and choices when consumers both focus on their moods (i.e., acknowledge and pay attention to their feelings) and perceive that moods are a relevant source of information for forming judgments. Support for this prediction was obtained when the relevance of moods was examined by manipulating relevance instructions, varying advertising cues, and manipulating product type. Further, the boundary conditions under which the combination of mood focus and perceived relevance is most influential on product preferences are identified.     

What is free association and what does it measure?

This paper reports the results of a study of free association in which participants were asked to produce the first two words to come to mind. The findings were used to estimate the reliability of indices of strength and set size for different types of items and to model free association as a retrieval task. When confined to first responses, reliability was generally high for both indices, particularly for words with smaller sets of associates and stronger primaries. When second responses were included, reliability declined. A second response added new but weak items to the set, and, when the primary associate was not produced on the first opportunity, it tended not to be produced on the second. Relative to when multiple responses are requested, first-response free association provides more reliable indices of the relative strength and set size for a word's strongest associates. A model of free association assuming that a strength distribution underlies each response provided a good fit to the data.     

Gender and developmental patterns of affect, belief, and behavior in simulated injury events

This study examined the hypothesis drawn from epidemiological data that beliefs and affective reactions of male second, fifth, and eighth graders, undergraduates, and adults in response to a series of four simulated bicycle collisions would show decreased expectation and avoidance of injury in comparison to females. This study also contrasted two additional hypotheses, one suggesting an invincibility belief in teenagers, producing a curvilinear age trend, with risky cognitions increasing from second grade, peaking at eighth grade, and then decreasing in adulthood. The other hypothesis suggested that with exposure, risky beliefs increased linearly, due to desensitization to cues of risk. As predicted, female participants did expect more fear and pain, and less exhilaration, and braked sooner after seeing the hazard than male participants. Linear rather than curvilinear age patterns emerged across films, revealing that the youngest participants anticipated more fear and less exhilaration than older participants. These results parallel developmental trends in which females and younger participants who anticipate more serious consequences are at lower risk for bicycle injury than are males, older children, and adolescents. Limitations of this analogue study and potential questions for both future research and the application of injury prevention techniques are explored.     

Melioration, matching, and maximization

Pigeons were studied in an experiment involving two concurrently available response keys. Conditions were such that in the first condition the predictions of melioration (Herrnstein & Vaughan, 1980), minimization of deviation from matching, and maximization were identical: relative time on the right key should have fallen between .125 and .25, which in fact occurred. In the second condition, melioration predicted a shift in relative time on the right to between .75 and .875, which would involve a transient deviation from matching as well as a substantial drop in rate of reinforcement. All three birds eventually shifted their distribution of behavior to within the range predicted by melioration.