CONSISTENT VISUAL ANALYSES OF INTRASUBJECT DATA

Visual inspection of single‐case data is the primary method of interpretation of the effects of an independent variable on a dependent variable in applied behavior analysis. The purpose of the current study was to replicate and extend the results of DeProspero and Cohen (1979) by reexamining the consistency of visual analysis across raters. We recruited members of the board of editors and associate editors for the Journal of Applied Behavior Analysis to judge graphs on a 100‐point scale of experimental control and by providing a dichotomous response (i.e., “yes” or “no” for experimental control). Results showed high interrater agreement across the three types of graphs, suggesting that visual inspection can lead to consistent interpretation of single‐case data among well‐trained raters.     

Self‐construal and social comparison effects

Background. Social comparison research usually demonstrates that students will have higher self‐evaluation in downward comparison but lower self‐evaluation in upward comparison. However, the existence of this contrast effect may depend on people's self‐construal. The contrast effect may exist only for people with independent self‐construal. For people with interdependent self‐construal, the contrast effect may be attenuated. Aim. The study investigated the role of self‐construal as a moderator of the social comparison effects in authentic classrooms. Sample. The participants were 96 Chinese seventh‐grade students (41 male, 51 female and 4 unreported) from a secondary school in Hong Kong. Method. The experiment employed a 2 × 2 between‐subjects design based on 2 levels of self‐construal (independent, interdependent) and 2 levels of comparison standard (upward comparison, downward comparison). The dependent variable was students' self‐evaluation. Results. A two‐way ANOVA indicated a significant interaction between self‐construal and comparison standard on self‐evaluation. When the students' independent self‐construal was activated, they reported higher self‐evaluation in downward comparison but lower self‐evaluation in upward comparison. However, such a contrast effect was attenuated when the students' interdependent self‐construal was activated. They reported high self‐evaluation in both upward and downward comparisons. Conclusions. The outcome of social comparison depends on whether independent or interdependent self‐construal is salient in the classroom.     

Meta‐Analysis of Counseling Outcomes for the Treatment of Posttraumatic Stress Disorder

This meta‐analysis of 152 published posttraumatic stress disorder (PTSD) clinical trials from 1990 to 2012 concluded that counseling generally produced a small to large effect of treatment across all comparison conditions at termination (d+ = 0.30 to 0.89). These gains were maintained at longest follow‐up (d+ = 0.58 to 0.86) for the wait‐list, treatment‐as‐usual, and single‐group comparisons, but not for the follow‐up placebo comparison (d+ = 0.15), probably because of the low power (j = 3 placebo studies). Clinical trial findings were synthesized using a random‐effects model. No effects of publication bias or moderating variables were evident. No difference was found between trauma‐focused and non‐trauma‐focused approaches. Implications for counseling practice and future PTSD outcome research are addressed.     

Strategic and tactical limits of comparison studies

A comparison study is an experiment whose primary purpose is to compare directly (regardless of experimental design) at least two different procedures for changing behavior or two or more components of such a procedure. This paper argues that, in spite of their popularity, such studies typically lead to inappropriate inferences with poor generality based on improper evidence gathered in support of the wrong question, thus wasting the limited experimental resources. The discussion considers problems concerning the functions of comparison studies, the nature of the comparisons that are attempted, the generality of their findings, and the limited role that they can play in technological research.     

Application of multiple baseline designs in behavior analytic research: Evidence for the influence of new guidelines

The multiple baseline (MBL) design is a single‐case experimental design that has both research and applied utility. Although the concurrent and nonconcurrent MBL variants are valid designs, each rules out different threats to internal validity. To help clarify these differences, studies have provided guidelines for graphically depicting and distinguishing between concurrent and nonconcurrent MBLs. This study assessed the extent to which data‐presentation guidelines have been adopted by examining single‐case experimental design studies published in 3 behavior‐analytic journals from 2000 to 2015. Results suggest that data‐depiction guidelines have increased correct identification of concurrent multiple baseline designs but also indicate that these guidelines have not been universally adopted.     

Measures of effect size

Two different approaches have been used to derive measures of effect size. One approach is based on the comparison of treatment means. The standardized mean difference is an appropriate measure of effect size when one is merely comparing two treatments, but there is no satisfactory analogue for comparing more than two treatments. The second approach is based on the proportion of variance in the dependent variable that is explained by the independent variable. Estimates have been proposed for both fixed-factor and random-factor designs, but their sampling properties are not well understood. Nevertheless, measures of effect size can allow quantitative comparisons to be made across different studies, and they can be a useful adjunct to more traditional outcome measures such as test statistics and significance levels.     

Self‐restraint and self‐injury: a demonstration of separate functions and response classes

We evaluated the self‐injurious behavior (SIB) and self‐restraint (SR) of an 11‐year‐old boy with severe mental retardation that were suspected to be functionally unrelated. A functional analysis (consequences provided for SIB) resulted in near‐zero levels of SIB across experimental conditions and did not indicate a specific function of SIB. In contrast, high, undifferentiated levels of SR were observed during the attention, control, alone, and demand conditions. Further analysis of a possible tangible function of SIB using pairwise comparisons resulted in a high rate of SIB during the contingent tangible condition, no SIB in the noncontingent tangible condition, and comparable levels of SR in both conditions. A subsequent analysis using restraint blocking during play and no‐play contexts suggested that SR produced automatic reinforcement under conditions of low ambient stimulation. Thus, SIB and SR were shown to be functionally independent and maintained by distinct consequences. The results are briefly discussed and suggestions for future research are provided. Copyright © 2000 John Wiley & Sons, Ltd.     

Methods Used to Document Procedural Fidelity in School-Based Intervention Research

There has been a paucity of guidance on the methodological details needed for measuring and sampling the independent variable or actual intervention occurrences in research and practice. Furthermore, the planning and support necessary to document the independent variable in both circumstances may be considerable. The current study extends prior research by reviewing the methods used to document procedural fidelity in school-based intervention research with student participants published between 2005 and 2012 in journals known for publishing school-related intervention studies. Two hundred sixty-six articles met the inclusion criteria and the majority (70 %) used fidelity data in the analysis of intervention effectiveness. By systematically examining contributions of school-based intervention researchers across targeted variables as well as qualities of interventions and settings, suggestions can be made for (a) planning measurement of fidelity across phases of the intervention, (b) sampling fidelity occurrences, (c) preventing intervention failure by providing needed supports, and (d) responding to patterns of fidelity required for intervention and outcome measurement in both research and practice.     

How Are Personality Judgments Made? A Cognitive Model of Reference Group Effects,Personality Scale Responses,and Behavioral Reactions

This article suggests that personality judgments are wholly relative, being the outcome of a comparison of a given individual to a reference group of others. The underlying comparison processes are the same as those used to judge psychophysical stimuli (as outlined by range frequency theory and decision by sampling accounts). Five experimental studies show that the same person's personality is rated differently depending on how his or her behavior (a) ranks within a reference group and (b) falls within the overall range of behavior shown by other reference group members. Results were invariant across stimulus type and response options (7-point Likert scale, 990-point allocation task, or dichotomous choice). Simulated occupational scenarios led participants to give different-sized bonuses and employ different people as a function of context. Future research should note that personality judgments (as in self-report personality scales) only represent perceived standing relative to others or alternatively should measure personality through behavior or biological reactivity. Personality judgments cannot be used to compare different populations when the population participants have different reference groups (as in cross-cultural research).     

Concurrent variable‐interval variable‐ratio schedules in a dynamic choice environment

Most studies of operant choice have focused on presenting subjects with a fixed pair of schedules across many experimental sessions. Using these methods, studies of concurrent variable‐ interval variable‐ratio schedules helped to evaluate theories of choice. More recently, a growing literature has focused on dynamic choice behavior. Those dynamic choice studies have analyzed behavior on a number of different time scales using concurrent variable‐interval schedules. Following the dynamic choice approach, the present experiment examined performance on concurrent variable‐interval variable‐ratio schedules in a rapidly changing environment. Our objectives were to compare performance on concurrent variable‐interval variable‐ratio schedules with extant data on concurrent variable‐interval variable‐interval schedules using a dynamic choice procedure and to extend earlier work on concurrent variable‐interval variable‐ratio schedules. We analyzed performances at different time scales, finding strong similarities between concurrent variable‐interval variable‐interval and concurrent variable‐interval variable‐ ratio performance within dynamic choice procedures. Time‐based measures revealed almost identical performance in the two procedures compared with response‐based measures, supporting the view that choice is best understood as time allocation. Performance at the smaller time scale of visits accorded with the tendency seen in earlier research toward developing a pattern of strong preference for and long visits to the richer alternative paired with brief “samples” at the leaner alternative (“fix and sample”).     

事必躬亲还是权力共享？内隐追随理论视角下的领导者授权行为研究

本文基于内隐追随理论,探讨了领导者的积极追随原型与追随者的积极追随特质的匹配情形如何形塑领导者的授权行为。基于广东省2家食品企业的226份上下级配对数据,采用多项式回归和响应面分析技术发现：当追随者的积极追随特质与领导者的积极追随原型相匹配时,追随者能够成为领导者的“意中人”。面对“意中人”,领导者将展现更多的授权行为。在匹配情况下,高-高匹配时的领导者授权行为高于低-低匹配的情形。     

Further evaluation of latency measures in the assessment and treatment of severe self‐injurious behavior

Recent research has demonstrated the utility of latency measures during the functional analysis of problem behavior; however, few studies have evaluated the utility of latency measures during subsequent treatment analyses. The current study seeks to extend the literature on the use of latency measures during the treatment of severe self‐injurious behavior (SIB). Following a latency‐based functional analysis, a treatment analysis was conducted using a hybrid procedure in which baseline sessions were terminated following the first instance of SIB, and test sessions ended after a fixed length of time. Latency to SIB was compared across conditions, whereas latency and rate measures for both SIB and functional communication responses were compared for the functional communication training condition. Results suggest that latency measures may be too sensitive during treatment analyses and that it is beneficial to use a hybrid procedure that allows for both latency and rate comparisons.     

An experimental study of attitudes toward homosexuals

A major shortcoming of research on homophobic attitude change has been methodological deficiencies. This report presents details of an experimental design, along with results.

A Solomon Four‐Group Experimental Design (SFGD) was employed for the study. Ninety‐two volunteer college students at a Mid‐Atlantic university were randomly assigned to four groups, two of which represented the classic experimental design (with pre‐test and post‐test for both experimental and control group) while the two remaining groups parallel the post‐test only design (with no pre‐test for both experimental and control group).

The principal independent and dependent variables of the study were positive social interaction with homosexuals and the degree of homophobia. Findings indicated that interaction strongly influences reduction of homophobic behavior.     

Implications for Wellness‐Based Supervision and Professional Quality of Life

This study evaluated the efficacy of the wellness model of supervision (WELMS; Lenz & Smith, 2010 ) for promoting changes across the perceptions of counselors‐in‐training (CITs) regarding professional quality of life. Three female participants (1 Caucasian, 2 Hispanic) were enrolled in a program accredited by the Council for Accreditation of Counseling and Related Educational Programs. Results of a single‐case research design with multiple baselines indicated that the WELMS was efficacious across client–CIT interactions on professional quality of life.     

The effects of general‐case training and behavioral skills training on the generalization of parents' use of discrete‐trial teaching,child correct responses,and child maladaptive behavior

One concern with training discrete‐trial teaching (DTT) is the generalization of teaching skills. This study employed behavioral skills and general‐case training to train three parents to conduct DTT. A multiple‐baseline‐across‐participants‐experimental design assessed the effects of parent training on the generalization of parents' DTT to non‐trained programs and on child behavior. Following training, generalization of parent DTT skills occurred, but the effects on child behavior were variable. Implications of programming for generalization and the effects of parent training on child performance are discussed. Copyright © 2008 John Wiley & Sons, Ltd.     

The evaluation of perpetrators and victims of peer victimization: An extended crossed‐categorization approach

This research uses a crossed‐categorization design for examining the perception of peer victimization. Using vignettes and an experimental design, perpetrator and victim evaluations of Dutch and Turkish‐Dutch early adolescents were examined in terms of ethnic and gender similarities between (1) respondent and perpetrator, (2) respondent and victim, and (3) perpetrator and victim. When the perpetrator was a double‐ingroup member of the respondent (same ethnicity and same gender), perpetrators were evaluated less negatively and victims less positively than when the perpetrator was a single (gender or ethnicity) or double‐outgroup member. Further, when the victim was a double‐ingroup member of the respondent, perpetrators were evaluated more negatively and victims more positively. No perpetrator–victim crossed‐categorization effects were found for perpetrator and victim evaluations. Perceived norms of intervention in the classroom had the expected main effects but did not moderate the crossed‐categorization effects. The usefulness of a crossed‐categorization approach for examining the perception of negative peer behavior is discussed. Copyright © 2010 John Wiley & Sons, Ltd.     

Development of a parent training program for children with pervasive developmental disorders

Parent delivered interventions based on applied behavior analysis (ABA) for children with Pervasive Developmental Disorders (PDDs) have been evaluated using primarily single‐subject design methodology or small case series. While the results of these evaluations are encouraging, an important next step is to standardize the interventions to allow for replication across sites, in studies with large samples and measures of long‐term, clinically meaningful outcomes such as improvements in children's functioning and their relationships with parents. Accordingly, the Research Units on Pediatric Psychopharmacology and Psychosocial Interventions (RUPP Autism Network) assembled a detailed manual for a structured behavioral parent training (PT) program, developed treatment fidelity and training procedures, and conducted a pilot, feasibility study. The PT program is part of a large scale, multisite study intended to determine the efficacy of combined pharmacological treatment and behavioral intervention to improve behavior and adaptive functioning in children with PDD. This paper discusses the rationale for this project. A companion paper provides the results of our feasibility study on the PT program. Copyright © 2007 John Wiley & Sons, Ltd.     

Increasing Teachers' Use of a 1:1 Praise‐to‐Behavior Correction Ratio to Decrease Student Disruption in General Education Classrooms

Contingent, behavior‐specific praise is universally recommended as an effective tool to increase students’ academic achievement and proscocial behavior. Despite this recommendation, little research has examined the effects of training teachers to increase their praise‐to‐behavior correction ratio in classroom settings. This study evaluated the effects of training teachers to provide a 1:1 ratio of praise‐to‐behavior correction to decrease student disruption in three general‐education classrooms. Three urban middle‐school general‐teachers who exhibited very low rates of praise participated in the study. Teachers received training, including modeling and performance feedback, to achieve a 1:1 ratio of praise‐to‐behavior correction administered within a multiple‐baseline across participants design. Results demonstrated that (a) the teachers were able to achieve and maintain a 1:1 praise‐to‐behavior correction ratio; (b) a reduction in student disruption coincided with teachers’ use of a 1:1 praise‐to‐behavior correction ration; and (c) two teachers evidenced moderate levels of generalization to classrooms where no training took place. Implications for practitioners and future research are discussed. Copyright © 2011 John Wiley & Sons, Ltd.     

Evaluation of a Targeted Intervention Within a Schoolwide System of Behavior Support

A recommended component of comprehensive behavior support in schools is a targeted intervention designed to efficiently and effectively meet the support needs of students who are not responding to preventive schoolwide intervention strategies (Sugai, Horner et al., 2000; Walker et al., 1996). This study provides a fine-grained analysis using a multiple baseline across students design with the targeted intervention as the independent variable, and both classroom problem behavior and academic engagement as dependent variables. The multiple baseline analysis documents a modest functional relationship between implementation of the intervention and reduction in problem behavior. Implications for the design of behavior support in schools and the development of future research are provided.     

The principle of parallelism in the design of studies to estimate treatment effects

An effect is a function of a cause as well as of 4 other factors: recipient, setting, time, and outcome variable. The principle of parallelism states that if a design option exists for any 1 of these 4 factors, a parallel option exists for each of the others. For example, effects are often estimated by drawing a comparison across recipients who receive different treatments. The principle of parallelism implies that an effect can also be estimated by drawing a comparison across settings, times, or outcome variables. Typologies of methodological options are derived from the principle of parallelism. The typologies can help researchers recognize a broader set of options than they would otherwise and thereby improve the quality of research designs.