Die Werturteilsfrage in der Technik

Journal for General Philosophy of Science - Bei den von Ingenieuren verwendeten Dezisionsmechanismen wird aufgrund der Fortentwicklung der Technik die methodologische Sicherung der...     

Family interactions of assaultive adolescents,stealers, and nondelinquents

Eleven adolescent chronic offenders apprehended for assaultive crimes in the community were observed in their family homes. This group was matched with 11 adolescents apprehended for stealing and with 11 adolescents with no court contact. Assaultive adolescents, unlike their controls, ranked significantly higher among their own family members in terms of their total aversive behavior in the family home. The results support the notion that assaultive adolescents are more involved with fighting with their siblings in the family home and consequently have had more practice in fighting than their controls, thereby preparing them for assaultive behavior in the community. Assaultive adolescents had more female siblings than male siblings, whereas nondelinquent adolescents had more male than female siblings.     

Comparisons of stimulus learning and response learning in a punishment situation

These experiments use a procedure in which a rat is trained to make two topographically distinct responses on a single manipulandum, and then one of the responses is punished. Differential suppression of the punished response is taken as evidence of response learning, whereas the common suppression of both responses is attributed to stimulus learning or to general and nonassociative factors. Thus, this procedure begins the experimental separation of animals learning about the consequences of their behavior and animals learning what happens in a particular environment. A further separation is effected by using two such manipulanda; this procedure begins to distinguish between stimulus learning about the manipulandum and the more gereral factors that cause suppression. Some parameters affecting the relative importance of stimulus learning and response learning are examined.     

Formal and informal classroom settings: Effects on hyperactivity

The behavior of hyperactive children was compared to controls in two different classroom settings. One setting (Informal) involved choice and variety of tasks; the other setting (Formal) involved teacher specification of a small number of tasks. As assessed by a composite observational measure of hyperactivity, there were significant differences between the hyperactive and control groups in the Formal but not in the Informal setting. Analyses of five individual categories of hyperactive behavior showed that, with one exception, the hyperactive group tended to display higher frequencies of behavior than did controls in both settings. For two of the categories, the difference between the groups was significantly larger in the Formal than in the Informal setting. Finally, a modified observational code was suggested that differentiated hyperactives from controls equally in the two settings.     

Statistical evaluation of measures of fit in the Lingoes-Borg procrustean individual differences scaling

PINDIS, as recently presented by Lingoes and Borg [1978] not only marks the latest development within the scope of individual differences scaling, but, may be of benefit in some closely related topics, such as target analysis. Decisions on whether the various models available from PINDIS fit fallible data are relatively arbitrary, however, since a statistical theory of the fit measures is lacking. Using Monte Carlo simulation, expected fit measures as well as some related statistics were therefore obtained by scaling sets of 4(4)24 random configurations of 5(5)30 objects in 2, 3, and 4 dimensions (individual differences case) and by fitting one random configuration to a fixed random target for 5(5)30 objects in 2, 3, and 4 dimensions (target analysis case). Applications are presented.     

Punishment of temporally spaced responding

The responses of pigeons were maintained by a DRL schedule of food reinforcement. With this schedule, responses were reinforced only when a fixed period of time elapsed without an intervening response. Punishment of all responses reduced the frequency of these responses as a direct function of the punishment intensity. As a consequence of the increased temporal spacing of responses, more reinforcements resulted during punishment. Under progressively higher intensities of punishment, the reinforcement frequency increased to a maximum value and then decreased at the highest intensities. The increased frequency of reinforcement which resulted during punishment did not counteract the suppressive effect of punishment, nor did it lead to a low response rate after punishment was removed. Punishment did not reduce the inter-response time distribution uniformly, but rather especially reduced the number of short inter-response times. Even at the low punishment intensities, the number of short inter-response times was considerably reduced. After punishment was discontinued, performance recovered almost completely after a compensatory burst. The number as well as the temporal pattern of responses returned to normal.     

The surface-weight illusion: on the contribution of grip force to perceived heaviness

Previous psychophysical studies have shown that an object, lifted with a precision grip, is perceived as being heavier when its surface is smooth than when it is rough. Three experiments were conducted to assess whether this surface-weight illusion increases with object weight, as a simple fusion model suggests. Experiment 1 verified that grip force increases more steeply with object weight for smooth objects than for rough ones. In Experiment 2, subjects rated the weight of smooth and rough objects. Smooth objects were judged to be heavier than rough ones; however, this effect did not increase with object weight. Experiment 3 employed a different psychophysical method and replicated this additive effect, which argues strongly against the simple fusion model. The whole pattern of results is consistent with a weighted fusion model in which the sensation of grip force contributes only partially to the perceived heaviness of a lifted object.     

Sexual and Physical Abuse Among Adolescent Girls with Disruptive Behavior Problems

We examined the prevalence and age of onset of physical and sexual abuse in a clinic-referred sample of adolescent girls, as well as differences in diagnoses and symptoms among abused and non-abused girls. Forty-nine girls (aged 13–17 years) with disruptive behavior were interviewed along with their primary caretaker. Data were gathered through both a structured interview with the girl and her parent, as well as self and parent-report questionnaires. Findings indicated that the prevalence of Conduct Disorder (CD) and Major Depression were higher for abused girls. Somatoform Pain Disorder was significantly less likely for physically abused girls, compared to girls who were both physically and sexually abused. Of CD symptoms, truancy was twice as high for the physically and sexually abused group, compared to the prevalence for non-abused girls. Internalizing symptoms were also highest for the dual abuse group. Onset graphs show that the onset of sexual abuse usually occurred at an earlier age than the onset of physical abuse. Abused girls showed an earlier age of onset of CD symptoms. Results indicated that the experience of combined types of abuse is associated with a poorer psychiatric prognosis.     

FUNCTIONAL ANALYSIS OF SEPARATE TOPOGRAPHIES OF ABERRANT BEHAVIOR

We conducted a functional analysis of distinct topographies of aberrant behavior displayed by 4 clients. We first analyzed the behaviors in an aggregate fashion and then separated the behaviors to formulate hypotheses about the maintaining variables for each behavior. The procedures were used in a two-phase experiment. During Phase 1, two extended functional analyses were completed, one in an inpatient unit and one in a special education classroom. During Phase 2, two brief functional analyses were completed in an outpatient clinic. Results indicated that hypotheses of separate functions for distinct behaviors can be generated using both extended and brief functional analyses when the results are graphed in the aggregate and are separated by response topography. The results also suggest that these methods can improve the accuracy of data interpretation and treatment selection.