The role of signals in two variations of differential‐reinforcement‐of‐low‐rate procedures

Differential‐reinforcement‐of‐low‐rate (DRL) schedules are used to decrease the overall rate of, but not eliminate, a target response. Two variations of DRL, spaced‐responding and full‐session, exist. Preliminary comparative analyses suggest that the two schedules function differently when unsignaled. We compared response rates under these two DRL variations with and without signals. In Experiment 1, five preschool students played a game in which points were earned under DRL schedules. In some sessions, a stimulus signaled when responses would be reinforced (S+) or not reinforced (S‐). In others, only an S‐ was present. Signals (S+/S‐) facilitated and maintained responding in both types of DRL schedules. In Experiment 2, we modified the signals with five different preschoolers. Instead of an S‐ only, we did not present any signals. Elimination and high variability of the target response were observed with the S‐ only and absence of S+/S‐, respectively. Signaled DRL schedules are recommended for application.     

The Influence of Multicultural Training on Perceived Multicultural Counseling Competencies and Implicit Racial Prejudice

This study examined the impact of multicultural training on multicultural counseling competencies and implicit racial prejudice. Results of a multilevel modeling analysis showed that only the multicultural counseling course was related to a decrease in implicit racial prejudice and an increase in cultural self‐awareness. Implications for multicultural training are discussed. Este estudio examinó el impacto de la formación multicultural en las competencias en consejería multicultural y el prejuicio racial implícito. Los resultados de un análisis de modelo a varios niveles mostraron que solo el curso en consejería multicultural estaba implicado en un descenso del prejuicio racial implícito y un aumento de la autoconciencia cultural. Se discuten las implicaciones para la formación multicultural.     

The Impact of Explanations and Demographic Group Membership: Reactions to Diversity Initiatives

In a laboratory experiment, we investigated the impact of procedural explanations and demographic group membership on dependent measures of diversity program support. Our analysis took one important perspective: the examination of work-force-diversity programs from the perspective of multiple beneficiary (i. e., targeted) demographic groups. The experiment's design used 99 student volunteers in a 3 × 3 (Explanation × Demographic Group) factorial design. Our findings reveal that both adequate explanation and demographic group membership have a significant impact on how potential work-forcediversity program beneficiaries expect their coworkers to perceive them. In addition, group membership was a significant predictor of potential beneficiaries' attitudes toward the diversity program and their self-perceptions of competence. Finally, we discuss implications for future research and diversity practice.     

Tactical skills and ball speed during a field simulation of penalty kick strategies in soccer

This study investigates the efficacy of intermediate penalty kickers by comparing the effect of applying an automated WiFi system on the field of play to simulate a strategy that takes account of goalkeeper action (dependent) with another for which goalkeeper strategy is irrelevant (independent). Intermediate penalty kickers (n=12) took a pretreatment test of 32 kicks in a "real-play" situation with intermediate goalkeepers (n=3). Two groups of kickers underwent 11 treatment sessions using different strategies and then were administered a posttreatment test. The variables measured were the number of goals scored, whether the direction of the shot was the same or different from the direction of the goalkeeper's move (DDG), ball speed, and the duration of the kicking movement. Data suggested the goalkeepers had a greater capacity to identify advance cues when faced with independent strategy kickers and that dependent strategy kickers achieved lower ball speeds.     

Predictors of Racial Prejudice in White American Counseling Students

This study extends the research on racial prejudice by combining previously identified predictors into 1 study to determine their relative importance in contributing to racial prejudice. Results revealed that White racial identity significantly predicted racial prejudice when demographic variables were controlled. Implications of reducing racial prejudice of White American counseling students are discussed. Este estudio extiende la investigación sobre el prejuicio racial combinando pronosticadores previamente identificados en 1 estudio para determinar su importancia relativa a contribuir al prejuicio racial. Los resultados revelaron que la identidad racial Blanca apreciablemente predijo el prejuicio racial cuando los variables demográficas son controladas. Las implicaciones para reducir el prejuicio racial de estudiantes Americano Blanco que aconsejan es discutido.     

Mood congruent Bias in Interpretation of Ambiguity Strategic Processes and Temporary Activation

Three experimentsinvestigated the tendency of high-anxiety individuals to interpretambiguous information in a threatening fashion. Priming ambiguous sentences (concerned with ego-threat, physical-threat, or non-threat events) were presented, followed by a disambiguating sentence in which a target word either confirmed or disconfirmed the consequence implied by the priming context. The sentences were presented word-by-word at a predetermined pace. Subjects read the sentences and pronounced the target word (naming task), which appeared either 500 msec or 1,250 msec after the onset of the last word (pre-target word) in the priming context. Results indicated that high-anxiety subjects named target words confirming threats faster than low-anxiety subjects, relative to non-threat words. Furthermore, this interpretative bias is: (a) strategic, rather than automatic, as it occurred with a 1,250-msec SOA, but not with a 500-msec SOA; (b) temporary, as it was found under evaluative stress conditions increasing state anxiety, butnot withnon-stress; and (c) specificto ego-threats, as it happened with ambiguous information concerning self-esteem and social evaluation, rather than with physical-threat-related information.     

Does preference rank predict substitution for the reinforcer for problem behavior? a behavioral economic analysis

Predictions made under low response requirements inherent in most preference assessments (PAs) do not guarantee the utility of stimuli in treatments. We examined whether PA rank would predict how well stimuli supported compliance for children with escape‐maintained problem behavior by examining the relation between PA rank and demand elasticity across five fixed‐ratio values. Three patterns were observed: All stimuli were selected equally across values, higher ranked stimuli were selected more at higher values, and something other than the highest ranked stimulus was selected more at higher values (i.e., mixed correspondence).     

Phonological coding in reading comprehension: The importance of individual differences

Abstract

In two experiments, texts were presented word by word at a fixed pace to subjects high or low in test anxiety, under various concurrent interference conditions: no interference, articulatory suppression, finger tapping, unattended meaningful speech, reversed (meaningless) speech and nonword (meaningless) speech. High-anxiety subjects produced overt articulation more frequently than low-anxiety subjects, especially in the speech conditions. There was an interaction between anxiety and interference on comprehension performance: Conditions thought to interfere with phonological coding (i.e. articulatory suppression and nonword speech) were detrimental to comprehension for high but not for low-anxiety subjects; in contrast, there were no differences in comprehension performance as a function of anxiety under conditions causing no (proper) phonological interference (i.e. no interference, finger tapping and reversed speech). There were mixed results in the meaningful speech condition, partly attributable to its semantic interference component. These findings reveal that the use and importance of phonological coding in reading comprehension vary with differences in test anxiety-high-anxiety subjects are vulnerable to disruptive effects on phonological coding. This suggests that high-anxiety individuals are especially likely to resort to speech-based coding during reading, and that phonological coding has a compensatory role for them.