EFFECTS OF REINFORCEMENT HISTORY AND INSTRUCTIONS ON THE PERSISTENCE OF STUDENT ENGAGEMENT

We examined the effects of three reinforcement histories on the persistence of task engagement by 2 fourth-grade students using a partially counterbalanced ABCDBCD design. In each condition, an experimenter made four student contacts during the first 2 min of each session (reinforcement baseline), followed by an 8-min extinction period. The reinforcement history that contained an instructional control component produced the greatest persistence in student engagement. The applied relevance of instructional control is discussed.     

Cognitive Biases and Political Party Affiliation in Intergroup Conflict

Employing the motivational basis of the false consensus bias, this study hypothesized that the degree of assumed similarity to in-group attitudes would differ among supporters of various political groups in intergroup conflict. We defined a conflict-maintaining bias, the adversary's extremity bias, and examined how the degree of the bias would also differ among supporters of various political groups. Data were gathered from Arab and Jewish high school and university students in Israel. Our hypotheses, that in intergroup conflict assumed similarity to in-group attitudes and the adversary's extremity bias would be greater among supporters of less conciliatory political parties than among supporters of more conciliatory political parties, were supported for one group in the conflict but not the other. Explanations of our findings are based on the differential power status of the 2 groups in the particular conflict.     

Attitudes toward the unconscious

As a keynote to a conference bringing together psychoanalysts and analytical psychologists, this paper addresses different mythic attitudes toward the unconscious, Starting with the caricatures of Oedipus and Narcissus that the author feels Jung and Freud originally projected onto each Other in the course of their quarrel. He moves on to the fairytale-like stories of Perseus and Beauty and the Beast to discover mote complex images of the stance taken in relation to the unconscious by present-day analysts: working within both die Jungian and the Freudian traditions.     

DIRECT AND COLLATERAL EFFECTS OF RESTRAINTS AND RESTRAINT FADING

Mechanical restraints are commonly used to reduce the risks associated with severe self-injurious behavior (SIB), but may result in movement restriction and adverse side effects (e.g., bone demineralization). Restraint fading may provide a method for decreasing SIB while increasing movement and reducing these side effects. In the current investigation, rigid arm sleeves and restraint fading (gradually reducing the rigidity of the sleeves) were used with 3 clients who engaged in hand-to-head SIB. Restraints and fading reduced the hand-to-head SIB of all clients. However, for 1 client, the addition of a water mist procedure further reduced SIB to near-zero levels. For a 2nd client, another form of SIB developed that was not prevented by the rigid sleeves. For a 3rd client, a topography of SIB that was not physically prevented by the rigid sleeves was also reduced when restraints and fading were introduced.     

Self- and cross-citations in the Journal of Applied Behavior Analysis and the Journal of the Experimental Analysis of Behavior: 1983-1992

We examined self- and cross-citation practices in JABA and JEAB from 1983 through 1992. Mean levels of self-citation for JABA and for JEAB were 22.6% and 36.1%, respectively. Overall, 2.4% of JABA citations were JEAB articles, and 0.6% of JEAB citations were JABA articles, which suggests limited integration of basic and applied research.     

Nodality effects during equivalence class formation: An extension to sight-word reading and concept development

Three students with moderate disabilities were taught to read and match-to-sample sight words comprising stimulus sets based upon the four food groups. We taught students conditional discriminations within four four-member sets using a single-sample/four-comparison procedure. Students were taught A-B, B-C, and C-D conditional discriminations for each of the four potential stimulus classes. Subsequent probes tested for relations based upon symmetry and one-node and two-node transitivity. The performances for all students indicated that symmetric relations emerged before one-node transitive relations, and that one-node transitive relations emerged before two-node transitive relations. These results are consistent with a pattern of responding, referred to as a "nodality effect," in which relations with fewer nodes are demonstrated prior to the demonstration of relations with a greater number of nodes. These results extend this area of research to sight-word reading for students with moderate disabilities.     

ANALYSIS OF A HIGH-PROBABILITY INSTRUCTIONAL SEQUENCE AND TIME-OUT IN THE TREATMENT OF CHILD NONCOMPLIANCE

This study evaluated the effectiveness of high-probability requests and time-out as treatments for noncompliance that appeared to be maintained by contingent attention in 2 developmental normal children. The introduction of high-probability requests increased compliance for 1 child but not the other. Time-out was effective with both children, and improvements in compliance were maintained at an 8-week follow-up.     

Social Dominance Orientation, Hierarchy Attenuators and Hierarchy Enhancers: Social Dominance Theory and the Criminal Justice System

This study investigated differences in social dominance orientation between incumbents of different social roles (police officers vs. public defenders) and ethnic groups known to differ in general social status (i.e., whites vs. blacks and Hispanics). Consistent with theoretical expectations: (a) Police were significantly more social-dominance oriented than either jurors or public defenders. (b) Public defenders tended to be less social-dominance oriented than jurors. (c) Euro-Americans were significantly more social dominance oriented than Afro- and Hispanic-Americans, (d) Euro-American police officers had, by far, the highest levels of social dominance orientation. Furthermore, all of the effects above held even when controlling for demographic factors such as gender, social class, age, education, and ethnic group. The theoretical implications of these findings are discussed.