A comparison of blocked and mixed‐trial methods for teaching auditory–visual discriminations

Behavior analysts typically teach conditional discriminations in a mixed‐trial format but may switch to a blocked‐trial format for learners displaying limited acquisition. No known research has shown that mixed‐trial methods are more effective or efficient than blocked‐trial methods for teaching discriminations, so it is not clear why this format has been adopted as the “first‐line” intervention. We compared blocked and mixed‐trial formats for teaching novel auditory–visual discriminations to three adults with intellectual and developmental disabilities (IDD). Results show blocked‐trial methods resulted in faster skill acquisition in all cases, suggesting this format may be a preferable starting point for instruction.     

A review of error correction procedures during instruction for children with developmental disabilities

Error correction procedures are remedial strategies presented following an incorrect response that increases the probability that a correct response will occur in the future. Error correction is commonly used during skill acquisition programs for children with developmental disabilities; however, the specific strategy used may differ considerably. Recent comparative studies have examined the effect of numerous error correction procedures on the efficiency of acquisition for children with developmental disabilities. Despite considerable merit, minor procedural differences and unique terms for similar procedures likely affect comparisons across studies. Here, we clarify the procedures and findings of these studies and suggest areas of future research.     

Multiracial Identity,Color‐Blind Racial Ideology,and Discrimination: Professional Counseling Implications

Because of the expansive multiracial population growth in the United States, the authors explored multiracial identity integration (MII), color‐blind racial ideology (CBRI), and discrimination using regression analyses with 288 individuals. CBRI and discrimination significantly correlated and predicted MII, with 15.3% of the variance explained by discrimination and CBRI. Moderation analysis revealed that CBRI did not moderate the relationship between discrimination and MII. Continued research among multiracial individuals is recommended to better understand the CBRI and racial identity link.     

Sexual harassment expanded: An examination of the relationships among sexual harassment,sex discrimination,and aggression in the workplace

We hypothesized that sexual harassment is part of a broader behavioral family including aggression and discrimination. We examined whether the relationships between these types of mistreatment can be represented well by a general factor that relates to other workplace variables. Evidence from military datasets showed that sexual harassment, sex discrimination, and workplace aggression can be conceptualized as a more general factor that functioned well in an integrated model of sexual harassment and was experienced differently by men and women. Thus, there is utility in examining these types of mistreatment both together and independently, both for research and prevention purposes.     

自我同一性与相关概念的辨析

自我同一性是一个多层次、多维度的心理学概念．这一概念自提出后就面临着概念澄清的问题．尤其是与相关概念的边界划分问题。因此．要把握自我同一性的概念就需要对与自我同一性相关联的概念进行辨析。这主要涉及到(1)自我与同一性;(2)自我同一性与自我概念;(3)自我同一性与个人同一性、角色同一性和社会同一性。     

A Conceptual Toolkit for Intensive Early Behavioral Intervention Teachers

Intensive early behavioral intervention (IEBI) for children with autism requires effective team work involving professional therapists, parents, teachers and others. It is important for all team members to employ a common conceptual and procedural vocabulary so that communication among them is clear, unambiguous, and effective. This article outlines the rationale of a small and practical vocabulary or conceptual toolkit that we have found useful in working with teachers and families in designing, implementing, and analyzing the details of behavioral programs to help autistic children learn to speak and understand language. Special attention is given to a heuristic device called the language matrix. Illustrative data describing the course of generative language acquisition by a child with autism taught according to the language matrix approach are included.     

An olfactory discrimination procedure for mice

This paper describes an olfactory discrimination procedure for mice that is inexpensively implemented and leads to rapid discrimination learning. Mice were first trained to dig in small containers of sand to retrieve bits of buried chocolate. For discrimination training, two containers were presented simultaneously for eight trials per session. One container held sand mixed with cinnamon, and the other held sand mixed with nutmeg. Both containers were baited with chocolate buried in the sand. One odor was designated S+, and mice were allowed to dig and retrieve the chocolate from this container. The other odor was S-, and both containers were removed immediately if subjects began to dig in an S- container. After meeting a two-session acquisition criterion, subjects were given a series of discrimination reversals. In Experiment 1, 12 Swiss-Webster mice (6 male and 6 female) acquired the olfactory discrimination in three to five sessions and completed 3 to 10 successive discrimination reversals within a 50-session testing limit. In Experiment 2, subjects were 14 Pah(enu2) mice, the mouse mutant for phenylketonuria; 7 were homozygotes in which the disorder was expressed (PKU), and 7 were heterozygotes with normal metabolism (non-PKU). Thirteen mice completed pretraining in four to seven sessions, acquisition required 3 to 12 sessions, and all mice completed at least three reversals. Learning rates were similar in PKU and non-PKU mice. We discuss issues related to implementation and several potentially useful procedural variations.     

Synthesizing concurrent interval performances

Concurrent schedules may be viewed as consisting of two pairs of stay and switch schedules, each pair associated with one of the alternatives. A stay schedule arranges reinforcers for staying and responding at one alternative, whereas the associated switch schedule arranges reinforcers for switching to the other alternative. In standard concurrent schedules, the stay schedule at each alternative is equivalent to the switch schedule at the other alternative. MacDonall (1999) exposed rats to one pair of stay and switch variable-ratio schedules and varied the response requirements across conditions. Combining results from symmetric pairs produced composite performances that were described by the generalized matching law. This outcome was noteworthy because the data were obtained from performances at two alternatives with contingencies that were functionally unrelated to each other. This result suggests that concurrent performances may consist of two unrelated performances that alternate as behavior moves between alternatives. The purpose of the present experiment was to extend those results to interval schedules. Rats were exposed to pairs of random-interval schedules, and across conditions their mean intervals were varied. When data from appropriately paired conditions were combined, the composite performances were consistent with the generalized matching law. In addition, the results supported two models of concurrent performances that were based on local variables at an alternative (behavior, and stay and switch reinforcers): a modified version of the contingency discrimination model (Davison & Jenkins, 1985) and the local model (MacDonall, 1999).     

Haitian and Haitian American experiences of racism and socioethnic discrimination in Miami-Dade county: At-risk and court-involved youth

We examine how juvenile justice-involved youth of Haitian descent in Miami-Dade County cope with structural racism and its impact on their mental health. Drawing on longitudinal ethnography, psychosocial assessment data, and a family-based clinical intervention funded by the National Institute on Drug Abuse, this article explores youth narratives of discrimination prior to and during the COVID-19 pandemic. We use critical race theory and theory of practice to understand youths’ perceptions as racialized bodies and stigmatized selves, highlighting the experiences and perspectives of a particular black immigrant group, ethnic beings caught up in the everyday practices of racialization, sociocultural marginalization, and racism. We frame these experiences as a variation of the complex continuum of structural racism and racial domination in the US. These experiences have caused anger, fear, anxiety, chronic anticipatory distress, and hopelessness among youth of Haitian descent. We conclude with some recommendations for therapeutic support that encourages youth to process their experiences, promotes their development of a positive self-concept, and provides them with mind-body techniques to attenuate the physical impacts of discriminatory events. The clinical trial registration number for this study intervention is NCT03876171.     

Internalization of the model minority myth and sociodemographic factors shaping Asians/Asian Americans' experiences of discrimination during COVID-19

Despite appearing positive, the model minority myth (MMM), or the perception that Asian Americans are “problem-free” minorities, maintains unfair racial hierarchies and discredits the pervasiveness of systemic racism faced by Asian Americans and other Black, Indigenous, and people of Color. This study investigated the role of internalized MMM in Asian/Asian Americans' (A/AA) experiences during the syndemic of COVID-19 and our society's racial reckoning. Using a mixed methods approach, we analyzed A/AA college students' open-ended responses to a query about their experiences as A/AA during COVID-19, which resulted in qualitative themes of Personal and Vicarious Discrimination, Vigilance, Safety due to Ethnicity, Safety due to Environment, and No Difference during COVID-19. We then conducted a series of logistic and linear regression models to examine how internalized MMM and sociodemographic factors (i.e., ethnic group, gender, and generational status) were associated with qualitative themes and quantitative measures of COVID-related discrimination. Overall, findings demonstrated that greater internalized MMM, as well as identifying as South Asian, male, and an international/first-generation immigrant student, were linked to fewer qualitative and quantitative reports of vicarious discrimination. We conclude with implications for research and practice in community psychology that further examine the racialized experiences among A/AA college students and ultimately seek to challenge the MMM and racial hierarchies perpetuating systems of oppression.