Safety locus of control as a predictor of industrial accidents and injuries

This article describes the underlying theory, development, and initial validation of the Safety Locus of Control Scale. This paper-and-pencil inventory assesses levels of safety consciousness among employees. Initial research suggests that the inventory is a reliable predictor of employees' accidents, injuries, and driving safety. Potential uses for the inventory are discussed, and future research is suggested.This article is from a paper presented at the Annual Conference of Human Resource Management and Organizational Behavior, Boston, Massachusetts, November 18–20, 1985.     

Infants’ identification of three-dimensional form from transformations of linear perspective

The ability of infants to perceive three-dimensional structure from transformations of linear perspective was investigated in two studies. Infants were habituated to the pattern of linear perspective transformations corresponding to a particular three-dimensional object, and their relative preference for that object as compared with a different three-dimensional object was assessed both before and after habituation. The habituation displays showed the distorting shadow cast by a rotating object and therefore provided only transformations of linear perspective as information specifying three-dimensional form. The pre- and posttest displays involved the actual three-dimensional objects and provided binocular, shading, and texture information specifying three-dimensional form, but did not provide informative transformations of linear perspective. In Study 1, 6-month-olds showed changes in preference from pre- to posttest that were related to the identity of the object whose shadow they had seen during habituation; 4-month-olds, however, did not show preference changes related to the habituation object. In Study 2, rhythm information that may have served as a basis for responding in Study 1 was eliminated from the test displays. Six-month-olds again showed changes in preference that were dependent on their habituation experience. It is concluded that, by 6 months of age, infants are able to perceive object structure from the isolated cue of transformations of linear perspective. The findings are discussed with reference to infants’ three-dimensional form perception based on other cues and also with reference to the emergence of certain spatially related moter activities.     

Variations on active learning

Although current theories of memory emphasize the fact that learning is an active process, there is little consensus on the role of active learning. This paper attempts to provide a more precise characterization of active learning in the acquisition of computer skills. The analysis of verbal protocols suggests that active learning varies on at least two dimensions: schema orientation and learning strategy. Schema orientation refers to the type of information the learner is acquiring and varies from relational information to procedural information. Learning strategy describes how the information is acquired. Some people prefer to be internally driven and form their own plans for learning. Others are externally driven and allow the instructional materials to guide their learning. These differences need to be taken into account in describing learning and in designing instructional materials.     

The intelligent infant: Theoretical implications

In the present essay, the fact that preferences for visual novelty during infancy are related to later performance on intelligence tests was interpreted to mean that intelligence is continuous from infancy. It was suggested that the bases of both continuity and the general factor in intelligence reside in the same small set of basic cognitive processes. It was also noted that intelligent behavior on the part of the infant raises a question about the relative importance of automatic and effortful processes in intelligence. The development of a valid test of infant intelligence was seen as an aid to clarifying the role of hereditary and environmental influences on intelligence and in furthering our understanding of mental retardation. In brief, the manner in which infants distribute their attention to novel and previously exposed stimuli reveals the origins of cognition. The origins of cognition are the origins of intelligence.     

An address-mode modification method for self-report questionnaires

A technique comparing first-person singular and first-person plural address modes (based on the Tennessee Self-concept Scale and modifications) was applied. Self-report and sociometric-like techniques were blended into a single method, providing a compound profile of the individual's interaction with his small, cohesive reference group. One hundred and sixteen males aged 18–22 yr participated in this study. The results vary significantly in accordance with the characteristics of the subgroup, and follow trends that may be seen as confirming the rules governing the interpretation of the profile. A set of rules is evolved (in the Discussion) by which the profile can be interpreted. The results distinguish significantly between people with marked leadership and instructional skills, and provide significant correlations with sociometric data concerning leadership propensities. The present technique suggests possible further elaborations for clinical diagnostic purposes and for assessment in personal and social psychological settings.     

Interpersonal problem solving in preschool children: A comparison of assessment procedures using two-dimensional versus three-dimensional stimuli

Two procedures for assessing the social problem-solving strategies of young children were compared: a traditional measure using pictorial stimuli and an alternative measure in which problems were presented using three-dimensional props. Subjects were 48 preschool children ages 3, 4 and 5. Using a counterbalanced, repeated measures design, the two tasks were presented to the children on consecutive days. Children also received the PPVT, and teacher ratings of behavioral adjustment were completed. Children gave more responses and suggested a greater variety of problem-solving strategies when tested with props than when tested with pictures. Response differences to the two testing procedures were greatest for children who were rated by their teachers as impulsive. Results are discussed in terms of the representational competence of the preschool child. Implications of the findings for intervention strategies also are discussed.     

A maximum likelihood hierarchical disaggregate model for predicting choices of individuals

The absence of operational disaggregate lexicographic decision models and Tversky's observation that choice behavior is often inconsistent, hierarchical, and context dependent motivate the development of a maximum likelihood hierarchical (MLH) choice model. This new disaggregate choice model requires few assumptions and accommodates the three aspects of choice behavior noted by A. Tversky (1972, Journal of Mathematical Psychology, 9, 341–367). The model has its foundation in a prototype model developed by the authors. Unlike the deterministic prototype, however, MLH is a probabilistic model which generates maximum likelihood estimators of the aggregate “cutoff values.” The model is formulated as a concave programming problem whose solutions are therefore globally optimal. Finally, the model is applied to data from three separate studies where it is demonstrated to have superior performance over the prototype model in its predictive performance.