Topic
Task analysis
About: Task analysis is a research topic. Over the lifetime, 10432 publications have been published within this topic receiving 283481 citations.
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TL;DR: Two studies are reported which deal with the directing function of goals in task performance and predicted that scores on a given dimension would be higher when the subject was trying to maximize (or minimize) his score on that dimension than when he was trying for some other goal.
158 citations
158 citations
TL;DR: This paper investigated the impact of manipulating the cognitive complexity of three different types of oral tasks on interaction, i.e., narrative reconstruction, instruction-giving map, and decision-making.
Abstract: The goal of this study is to investigate the impact of manipulating the cognitive complexity of three different types of oral tasks on interaction. The study first considers the concepts of task complexity and interaction and then examines the specific studies that have looked at the effects of increasing task complex- ity on conversational interaction. In the experiment, learners of English as a foreign language organized into 27 dyads carry out three different types of tasks: a narrative reconstruction task, an instruction-giving map task, and a decision-making task. Two different versions of each task, one simple and one complex, are presented to learners in different sequences. Task complexity is manipulated along the degree of displaced, past time reference, the number of elements, and the reasoning demands. Audio recordings are transcribed and coded for interactional feedback, which is measured in terms of negotiation of meaning (i.e., confirmation checks, clarification requests, and comprehension checks), recasts, language-related episodes (LREs), and repairs, all of which have been described in the literature as being conducive to acquisition. Both parametric and non-parametric statistical tests are used. Results are discussed in the light of previous studies that have looked at the specific relationship between task complexity and interaction, attention models (Robinson 2001a, 2003, 2005, 2007b; Skehan and Foster 2001), and how different task types may variously affect the way interaction proceeds during task performance.
157 citations
TL;DR: Task analysis as mentioned in this paper is a method for studying the process of change, which consists of two main phases: a discovery-oriented phase based on rational-empirical model building and a hypothesis testing.
Abstract: The epistemological and methodological underpinnings of task analysis are discussed and the steps and concrete procedures for its implementation are described and exemplified in a task analysis of the resolution of unfinished business. Task analysis, a method for studying the process of change, consists of two main phases: a discovery-oriented phase based on rational–empirical model building and a validation phase based on hypothesis testing. The goals of the approach are to (a) build an observationally based model of how therapeutic change occurs for a particular type of affective–cognitive problem, (b) validate the model of change, and (c) relate the process of change to outcome. Benefits and strengths of the approach are presented and factors that have impeded the use of this approach in the study of change processes are discussed.
157 citations
TL;DR: The appropriateness of a given layout is computed by weighting the cost of each sequence of actions by how frequently the sequence is performed, which emphasizes frequent methods of accomplishing tasks while incorporating less frequent methods in the design.
Abstract: Numerous methods for evaluating user interfaces have been investigated to develop a metric that incorporates simple task descriptions which can assist designers in organizing their user interface. The metric, Layout Appropriateness (LA), requires a description of the sequences of actions users perform and how frequently each sequence is used. This task description can either be from observations of an existing system or from a simplified task analysis. The appropriateness of a given layout is computed by weighting the cost of each sequence of actions by how frequently the sequence is performed, which emphasizes frequent methods of accomplishing tasks while incorporating less frequent methods in the design. In addition to providing a comparison of proposed or existing layouts, an LA-optimal layout can be presented to the designer. The designer can compare the LA-optimal and existing layouts or start with the LA-optimal layout and modify it to take additional factors into consideration. >
157 citations