A Sociological Perspective on Contextualism

Traditional organismic age-stage theories of development have recently fallen into disrepute because of their failure to adequately explain research understandings of human development. Currently, new contextualist approaches are being advanced to rectify this problem. This article reviews the key assumptions of 2 new contextualist theories (constructivism and interactionism), examines the claims of these new contextualisms, and offers suggestions as to how a sociological analysis of human development can remedy some of the major theoretical failings while building on the basic strengths. The article concludes with a discussion of how a critical contextualism might inform the practice of counselors.     

“Minimax length links” of a dissimilarity matrix and minimum spanning trees

A theorem is proved stating that the set of all minimax links, defined as links minimizing, over paths, the maximum length of links in any path connecting a pair of objects comprising nodes in an undirected weighted graph, comprise the union of all minimum spanning trees of that graph. This theorem is related to methods of fitting network models to dissimilarity data, particularly a method called Pathfinder due to Schvaneveldt and his colleagues, as well as to single linkage clustering, and results concerning the relationship between minimum spanning trees and single linkage hierarchical trees.Acknowledgments: The author thanks Phipps Arabie, Lawrence J. Hubert, and K. Christoph Klauer for a number of helpful suggestions and comments on various aspects of this paper.     

LISTENING TO SMOKING RESEARCHERS:

Abstract— The work of Baker and his colleagues indicates that a broadened view of withdrawal that recognizes its probable affective bases will suggest new treatment strategies for the treatment of smoking and, by extension, drug dependence. This commentary briefly reviews the current status of treating drug dependence by addressing negative affect and emphasizes that clinical research which allows for building more complex models, of individual change over time holds promise for clearer understanding of the role of negative affect among drug abusers and thus more effective treatments. Although clinical treatments for drug dependence have long recognized the significance of negative affect we are far from a thorough understanding of the role of negative affect in withdrawal, craving, and relapse to drug use.     

A maximum likelihood method for fitting the wandering vector model

After introducing some extensions of a recently proposed probabilistic vector model for representing paired comparisons choice data, an iterative procedure for obtaining maximum likelihood estimates of the model parameters is developed. The possibility of testing various hypotheses by means of likelihood ratio tests is discussed. Finally, the algorithm is applied to some existing data sets for illustrative purposes.     

The effects of spatial,temporal, and control variables on the free-recall serial position curve of retardates and equal-MA normals

Memory & Cognition - In Experiment I seven pictures were sequentially illuminated at a 3-see rate through seven translucent windows. A different window provided the starting point for each of...     

Word frequency and age of acquisition as determiners of picture-naming latency

In multiple-regression analysis of picture-naming latencies from an experiment modelled on Oldfield and Wingfield's (1965), with 94 stimuli and 37 adult subjects, two word frequency measures had insignificant beta weights, while two measures estimating age at which the word was learned had highly significant weights. Objects whose names were learned early were named faster. This result may have important implications for the interpretation of studies using word frequency as a critical variable. It is suggested that word retrieval may be a one-stage process that depends upon the age at which a word was learned.     

Mothers' responses to infants' facial expressions of sadness,anger, and physical distress

It was hypothesized the mothers' predictions of their caregiving interventions would be differentially influenced by infants' facial expressions of sadness, anger, and physical distress. Mothers viewed slides of infants whose facial displays had first been objectively classified with the Maximally Discriminative Facial Movement Coding System (Izard, 1979). Mothers imagined their infants showing similar expressions while scaling their own tendencies to respond with a number of specific caregiving and socializing interventions and affective reactions. Multivariate ANOVAs showed that the mothers' predictions differed for the three types of negative display. In an emotion decoding task, mothers' responses did not differ as a function of the infants' sex. The patterns of decoded emotions were most similar between physical distress and anger expressions, and least similar between physical distress and sadness expressions. Generally, the findings supported the hypothesis that the negative facial displayes signaled different affective states and had differential motivational effects on the mothers.