Incorporating a vocational component into a school psychological evaluation: A case example

Vocational assessment services increasingly are being provided to handicapped secondary school students as a result of recent federal legislation. This article describes the need for such services and describes a vocationally oriented psychological evaluation completed on a handicapped adolescent by a school psychologist. The relevance of traditionally derived school psychological assessment data in vocational programming, the value of expanding assessment batteries to include vocationally specific assessment techniques, and the writing of vocationally oriented psychological reports are discussed.     

Correlates of vocational practice among school psychologists

This study surveyed 362 school psychologists to: (a) identify the percentages of school psychologists who have had some involvement in the practices of vocational assessment, vocational counseling, consultation with vocational education teachers, and vocational program or curriculum development, and (b) identify factors that are associated with such vocational involvement. Results indicated that 30–40% of those school psychologists surveyed reported some involvement in vocational assessment, vocational counseling, and consultation with vocational education teachers, while only 12% indicated involvement with vocational program or curriculum development. Sex, experience, salary, perceived control over role functioning, and involvement in practices other than traditional assessment were found to be associated with increased involvement in vocational activities. Results also indicated that school psychologists who were certified guidance counselors, and who were members of the American Association of Counseling and Development, were more likely to be involved in vocational practices than were school psychologists who were not so certified or affiliated. Results are discussed in terms of their implication for involving greater numbers of school psychologists in vocational practices.     

The use of paradoxical intention with oppositional behavior in the classroom

Time-out procedures often seem to be overused by teachers and tend to emphasize a linear view of problem behavior. Paradoxical strategies appear to provide a change in the dynamics of the teacher-child relationship and are thus a more systemic way of viewing the behavior. Three case studies are presented where the paradoxical strategies have varying degrees of success. The cases are discussed in terms of the critical aspects of the approach, as demonstrated in the case studies.     

Lower limb joint kinetics during the first stance phase in athletics sprinting: three elite athlete case studies

Abstract

This study analysed the first stance phase joint kinetics of three elite sprinters to improve the understanding of technique and investigate how individual differences in technique could influence the resulting levels of performance. Force (1000 Hz) and video (200 Hz) data were collected and resultant moments, power and work at the stance leg metatarsal-phalangeal (MTP), ankle, knee and hip joints were calculated. The MTP and ankle joints both exhibited resultant plantarflexor moments throughout stance. Whilst the ankle joint generated up to four times more energy than it absorbed, the MTP joint was primarily an energy absorber. Knee extensor resultant moments and power were produced throughout the majority of stance, and the best-performing sprinter generated double and four times the amount of knee joint energy compared to the other two sprinters. The hip joint extended throughout stance. Positive hip extensor energy was generated during early stance before energy was absorbed at the hip as the resultant moment became flexor-dominant towards toe-off. The generation of energy at the ankle appears to be of greater importance than in later phases of a sprint, whilst knee joint energy generation may be vital for early acceleration and is potentially facilitated by favourable kinematics at touchdown.     

Surprise and change: Variations in the strength of present and absent cues in causal learning

It is said that “absence makes the heart grow fonder.” But, when and why does an absent event become salient to the heart or to the brain? An absent event may become salient when its nonoccurrence is surprising. Van Hamme and Wasserman (1994) found that a nonpresented but expected stimulus can actually change its associative status—and in the opposite direction from a presented stimulus. Associative models like that of Rescorla and Wagner (1972) focus only on presented cues; so, they cannot explain this result. However, absent cues can be permitted to change their value by assigning different learning parameters to present and absent cues. Van Hamme and Wasserman revised the Rescorla-Wagner model so that the α parameter is positive for present cues, but negative for absent cues; now, changes in the associative strength of absent cues move in the opposite direction as presented ones. This revised Rescorla-Wagner model can thus explain such otherwise vexing empirical findings as backward blocking, recovery from overshadowing, and backward conditioned inhibition. Moreover, the revised model predicts new effects. For example, explicit information about the absence of nonpresented cues should increase their salience (that is, their negative α value should be larger), leading to stronger associative changes than when no explicit mention is made of cue absence. Support for this prediction is detailed in a new causal judgment experiment in which participants rated the effectiveness of different foods’ triggering a patient’s allergic reaction. Overall, these and other findings encourage us to view human causal learning from an associative perspective.     

Response rate is not an effective mediator of learned stimulus equivalence in pigeons

We explored response rate as a possible mediator of learned stimulus equivalence. Five pigeons were trained to discriminate four clip art pictures presented during a 10-sec discrete-trial fixed interval (FI) schedule: two paired with a one-pellet reinforcer, which supported a low rate of responding, and two paired with a nine-pellet reinforcer, which supported a high rate of responding. After subjects associated one stimulus from each of these pairs with a discriminative choice response, researchers presented two new clip art stimuli during a 10-sec FI: one trained with a differential reinforcement of low rate schedule (DRL) after the FI and the other trained with a differential reinforcement of high rate schedule (DRH) after the FI. Each of the stimuli that were withheld during choice training was later shown to see if the choice responses would transfer to these stimuli. The results suggest that response rate alone does not mediate learned stimulus equivalence.     

Social working memory: Memory for another rat's spatial choices can increase or decrease choice tendencies

In two experiments using a radial-arm maze, pairs of rats made choices among eight maze locations, each containing a large quantity of one of two food types. The choices made by 1 rat affected the choices made by the other rat. Under most conditions, visits by 1 rat increased the tendency of the other rat to subsequently choose that maze location. However, the effect depended on the quality of the food available in a particular location. When it was possible for the rats to observe each other on the maze arms and a rat had experienced that a location contained the less preferred food type, a previous visit to that location by the foraging partner decreased the tendency to visit that location. These effects are attributed to working memory for the spatial choices of another rat, and they indicate that memory produced by a rat’s own visit to a maze location is integrated with memory for the behavior of another rat to determine spatial choice