Empowerment, Performance, and Operational Uncertainty: A Theoretical Integration

L'accession au pouvoir est présentée comme une recette universelle pour améliorer la performance au travail. On défend ici l'idée qu'il existe déjà des arguments forts pour penser que cette conviction est des plus discutables, et que l'impact de la participation dépendra du degré de l'incertitude opérationnelle qui prévaut. Notre point de vue s'appuie sur une analyse des idées qui émergent conjointement de cinq domaines, à savoir les théories des organisations, la structuration du travail, le management "zéro défaut", le management des facteurs humains et celui des ressources humaines. On met en évidence les conséquences théoriques et pratiques de nos investigations et certaines des pistes à suivre pour approfondir la réflexion.
Empowerment is being promoted as a general recipe for enhancing work performance. We argue that there are already strong grounds for suggesting that this universalistic assumption is flawed, and that the effectiveness of empowerment practices will be contingent on the degree of operational uncertainty that prevails. This argument is supported by an analysis of ideas in common emerging from five different areas of inquiry, namely those concerned with organisational theory, work design, total quality management, human factors, and human resource management. We identify the theoretical and practical implications of our analysis, and some of the lines of investigation required to develop the ideas further.     

Independent effects of colour on object identification and memory

We examined the effects of colour on object identification and memory using a study-test priming procedure with a coloured-object decision task at test (i.e., deciding whether an object is correctly coloured). Objects were selected to have a single associated colour and were either correctly or incorrectly coloured. In addition, object shape and colour were either spatially integrated (i.e., colour fell on the object surface) or spatially separated (i.e., colour formed the background to the object). Transforming the colour of an object from study to test (e.g., from a yellow banana to a purple banana) reduced priming of response times, as compared to when the object was untransformed. This utilization of colour information in object memory was not contingent upon colour falling on the object surface or whether the resulting configuration was of a correctly or incorrectly coloured object. In addition, we observed independent effects of colour on response times, whereby coloured-object decisions were more efficient for correctly than for incorrectly coloured objects but only when colour fell on the object surface. These findings provide evidence for two distinct mechanisms of shape-colour binding in object processing.     

Causing Students to Choose More Language Arts Work: Enhancing the Validity of the Additive Interspersal Procedure

Research on the additive interspersal procedure was extended by exposing seventh-grade students to curricula-based (e.g., educationally valid) language arts assignments. In Experiment I, each student was given a control language arts assignment containing 20 discrete target items and an experimental assignment containing 24 equivalent target items, plus eight interspersed briefer items. After working on both assignments for 10 minutes, significantly more students chose a new experimental assignment for homework. Individual analysis showed that 85% of the students preferred or chose the assignment associated with higher discrete task completion rates. In Experiment II, students completed both assignments. Results extended previous research by showing that even after expending more effort to complete the 20% more target items plus the additional interspersed items on the experimental assignments, significantly more students chose an experimental assignment for homework. Applied and theoretical implications are discussed along with limitations of the current study and directions for future research.     

Why I'm not a Humean

There is an inconsistency between the access we have to our conscious lives and the Humean thesis of causal generalism. This was first drawn attention to by John Hawthorne, whose argument withstands a number of objections. Nevertheless, it has weaknessess. The first premise must be weakened if Humeans are to be compelled to accept it, and consequently, the second premise will have to be stronger to retain validity. I shore up the case against Humeanism by providing revised premises along with new defences of them. I show why this also provides a lesson for non-Humeans about the epistemology of causal relations.     

Dividing attention between color and shape: Evidence of coactivation

When attention is divided between spatially distinct objects, the time-to detect a target decreases when two or more targets are present. This redundancy gain can be accounted for by an interactive race model (Mordkoff & Yantis, 1991) in which separate decisions are made about each object, but environmental contingencies among the objects can influence decision times. In the present study, we examined whether the model also accounts for performance when attention must be divided between stimulus attributes other than spatial location. Subjects made target-present responses when displays included a prespecified color, a prespecified letter, or both target features. The data violated the predictions of all separate-activations models, including the interactive race model. Two control experiments ruled out an alternative account based on task complexity. We conclude that coactivation occurs when target attributes from two separable dimensions are simultaneously present, but not when target attributes come from the same dimension. A modular hybrid of race and coactivation models is tentatively proposed.     

Redundancy gains and coactivation with two different targets: The problem of target preferences and the effects of display frequency

When a visual display contains two targets, both of which require the same response, reaction times (RTs) are faster than when only one target appears. This effect has previously been obtained regardless of whether the redundant targets are the same or different in shape, and in at least one set of two-target experiments, the redundancy gains have been larger for different targets (Grice & Reed, 1992). Experiments with two different targets have also revealed violations of the race-model inequality, suggesting that redundant targets coactivate the response (Miller, 1982). The present paper reexamines both of these findings, because both appear to be inconsistent with the interactive race model (Mordkoff & Yantis, 1991). Experiment 1 shows that the race-model inequality is not violated when the experimental design is free of biased contingencies; Experiment 1 also provides evidence that target preferences may artifactually produce the RT advantage fordifferent- oversame-target trials. Experiment 2, however, shows that the race-model inequality is violated when the frequencies of single- and redundant-target displays are equated (without introducing any biased contingencies), implying that the interactive race model cannot account for the results of experiments involving more than one type of target. Alternative loci for coactivation are briefly discussed.     

The voices in children's literature: The impact of gender on the moral decisions of storybook characters

The study examined the moral and self orientations of 212 male and female characters in 50 works of fiction for school-aged children. A modified version of Lyons' coding scheme was used for differentiating between Justice and Care moral orientations, and Separate/Objective and Connected self orientations. It was hypothesized that male characters would demonstrate Justice morality and a Separate/Objective self, whereas female characters would demonstrate Care morality and a Connected self, regardless of sex of author. The results confirmed the hypotheses. The importance of literature in providing symbolic models of moral decisioning and the need to expand children's moral orientations beyond gender-linked stereotypes was discussed.An earlier version of this paper was presented at the annual meeting of the American Educational Research Association, April 1988, New Orleans, Louisiana.     

Independent influences of verbalization and race on the configural and featural processing of faces: a behavioral and eye movement study

Describing a face in words can either hinder or help subsequent face recognition. Here, the authors examined the relationship between the benefit from verbally describing a series of faces and the same-race advantage (SRA) whereby people are better at recognizing unfamiliar faces from their own race as compared with those from other races. Verbalization and the SRA influenced face recognition independently, as evident on both behavioral (Experiment 1) and eye movement measures (Experiment 2). The findings indicate that verbalization and the SRA each recruit different types of configural processing, with verbalization modulating face learning and the SRA modulating both face learning and recognition. Eye movement patterns demonstrated greater feature sampling for describing as compared with not describing faces and for other-race as compared with same-race faces. In both cases, sampling of the eyes, nose, and mouth played a major role in performance. The findings support a single process account whereby verbalization can influence perceptual processing in a flexible and yet fundamental way through shifting one's processing orientation.