Problem solving as reinforcement in adolescent drug use: Implications for theory and policy

The problem of adolescent drug use received a great deal of attention both in criminological theory and public policy. Predominant among theories was Akers' social learning theory which examined the role of learning through a process of imitation, modeling, and reinforcement. Public policy led to the development of programs such as Drug Abuse Resistance Education (DARE) that aimed to warn youths of the dangers of drug use. In line with research findings, both theory and policy gave a central role to peers in understanding adolescent drug use. Less attention was given to another important finding in the literature, that those who used drugs often perceived the drugs as solutions to problems. Using social learning theory, the role of perceptions of drug use as an effective problem solver was examined. Results indicated that a more explicit recognition of the use of drugs to deal with problems might inform both theory and policy.     

Procedural fairness and work group responses to performance evaluation systems

In a variety of settings, procedures that permit predecision input by those affected by the decision in question have been found to have positive effects on fairness judgments, independent of the favorability of the decision. Two major models of the psychology of procedural justice make contrary predictions about whether repeated negative outcomes attenuate such input effects. If such attenuation occurs, it would lessen the applicability of procedural justice findings to some real-world settings, such as organizations, where procedures often provide repeated negative outcomes. The present laboratory investigation examined the procedural and distributive fairness justments produced by high- and low-input performance evaluation procedures under conditions of repeated negative outcomes. Thirty-five three-person groups of male undergraduates participated in a three-round competition. Groups either were or were not allowed to specify the relative weights to be given to two criteria used in evaluating their performance. All groups received negative outcomes on each of the three rounds. A second experimental factor varied whether or not the group learned after losing the second round that it could not possibly win the third and final round of the competition. Measures of procedural and distributive fairness showed that the high-input procedure led to judgments of greater procedural and distributive fairness across all three rounds. The input-based enhancement of fairness occurred regardless of whether reward was possible. The implications of these findings for theories of procedural justice and for applications of procedural justice to organizational settings are discussed.     

The forensic analysis of soils and sediment taken from the cast of a footprint

The routine production of a cast of a shoe-print taken in soil provides information other than shoe size and gait. Material adhering to the surface of the cast represents the preservation of the moment of footprint impression. The analysis of the interface between the cast and soil is therefore a potentially lucrative source of information for forensic reconstruction. These principles are demonstrated with reference to a murder case which took place in the English Midlands. The cast of a footprint provided evidence of a two-way transfer of material between the sole of a boot and the soil of a recently ploughed field. Lumps of soil, which had dried on a boot, were deposited on the field as the footprints were made. Pollen analysis of these lumps of soil indicated that the perpetrator of the imprint had been standing recently in a nearby stream. Fibre analysis together with physical and chemical characteristics of the soil suggested a provenance for contamination of this mud prior to deposition of the footprint. Carbon/nitrogen ratios of the water taken from the cast showed that distilled water had been used thus excluding the possibility of contamination of the boot-soil interface. It was possible to reconstruct three phases of previous activity of the wearer of the boot prior to leaving the footprint in the field after the murder had taken place. This analysis shows the power of integrating different independent techniques in the analysis of hitherto unrecognised forensic materials.