Cerebral lateralization in bilinguals: Methodological issues

The literature on lateralization for language in bilinguals manifests two apparent contradictions. Some papers demonstrate differences in lateralization between bilinguals and monolinguals; others demonstrate none. In studies with exclusively bilingual subjects, some papers demonstrate differences between the lateralization for the two languages, while others demonstrate none. This paper discusses the range of methodological parameters which must be borne in mind when conducting or evaluating studies of lateralization for language in bilinguals. These include issues of subject selection, language and stimulus selection, testing procedures, data analysis, and interpretation of results.     

Methodological issues in the study of sex-related differences

Ten ubiquitous methodological problems are described in relation to group differences research and particularly sex-related research. Substantive issues in sex-related research are used as illustrations of the methodological problems.     

Methodological issues in the assessment of sustained performance

In both military and industrial work settings, it has become desirable, and in many instances necessary, to require sustained performance beyond the apparently optimal 8-h workday. Research in this area may be viewed historically as having been focused in three major areas: (1) determining appropriate methodologies for measuring sustained performance, (2) investigating factors that influence sustained performance, and (3) searching for ways to enhance performance during sustained operations. On the basis of discussions held in Toronto in August 1984, observations are drawn and recommendations are made concerning the directions and content of future research.     

Methodological issues in the quantitative analysis of dream content

Reviews measurement approaches applied to dream reports and proposes some methodological cautions that may result in more effective utilization of the dream report in research and assessment. Standardization of dream collection techniques and controls for variability in the length of dream reports are suggested. Further investigation of the intraindividual consistency of dream report measures is seen as necessary for a discussion of their validity. Though there are indications that a variety of dream report measures are potentially valid for psychological assessment, measures based on general dream report characteristics show greater promise than specific content analysis. Research on the differences between normal and disturbed subjects highlights the potential, and the problems, inherent in the use of dream reports as tools of psychological inquiry.     

Methodological issues in the use of the concurrent activities paradigm

This paper presents a critical analysis of one type of dual-task procedure, the lateralized concurrent activities paradigm. Extrinsic and intrinsic factors that may influence the interpretation of results obtained with this paradigm are isolated and methodological refinements in experimental design and analysis are suggested.     

Methodological issues in prevention research: An introduction to the special issue

In recent years increased attention has been directed to prevention research as a means of solving the multitude of complex social and health problems which confront individuals and their societies. Abuse of substances, behavioral dysfunctions, violence, emotional disorders, educational failures, unwanted pregnancies and sexually transmitted diseases are but a few examples of these most difficult problems. As our recognition of the need for sound prevention strategies has grown, so has our sophistication in designing prevention research studies to evaluate the effectiveness of these new strategies. And that sophistication has brought new challenges, some of which are capable of stifling progress because of their complexity. This problem is certain to grow in importance as interventions with multiple components are used more frequently to meet the challenges of the complex social and health problems we face. This special issue evolved out of the recognition that prevention researchers are confronted by a myriad of difficult methodological issues which have inhibited progress in this area. The articles in the issue present innovative methodological solutions designed to overcome these problems so the field can move forward. Editor's Note: Dr. Edward Seidman edited Methodological Issues in Prevention Research while serving as Associate Editor for Methodology.     

Culture of Science: Strange History of the Methodological Thinking in Psychology

In pre-World-War-II psychology, two directions in methodological thought—the German–Austrian and North American ways—could be differentiated. After the war, the German–Austrian methodological orientation has been largely abandoned. Compared to the pre-WWII German–Austrian psychology, modern mainstream psychology is more concerned with accumulation of facts than with general theory. Furthermore, the focus on qualitative data—in addition to quantitative data—is rarely visible. Only external–physical or statistical-rather than psychological controls are taken into account in empirical studies. Fragments—rather than wholes—and relationships are studied, and single cases that contradict group data are not analyzed. Instead of complex psychological types simple trait differences are studied, and prediction is not followed by thorough analysis of the whole situation. Last (but not least), data are not systematically related to complex theory. These limits have hindered the growth of knowledge in the behavioral sciences. A new return to an updated version of the German–Austrian methodological trajectory is suggested.

Methodological issues in measures of imitative reaction times

Ideomotor (IM) theory suggests that observing someone else perform an action activates an internal motor representation of that behaviour within the observer. Evidence supporting the case for an ideomotor theory of imitation has come from studies that show imitative responses to be faster than the same behavioural measures performed in response to spatial cues. In an attempt to replicate these findings, we manipulated the salience of the visual cue and found that we could reverse the advantage of the imitative cue over the spatial cue. We suggest that participants utilised a simple visuomotor mechanism to perform all aspects of this task, with performance being driven by the relative visual salience of the stimuli. Imitation is a more complex motor skill that would constitute an inefficient strategy for rapid performance.     

Using Toulmin's Framework for the Analysis of Everyday Argumentation: Some Methodological Considerations

This study used Toulmin's analytical framework of argumentative structure in order to examine employees' argumentative discourse on the way they handle conflict situations in their workplace. The way in which this analytical tool has been applied here challenges critics on the usefulness of the particular analytical tool for the analysis of real-life argumentation. The definition of argumentative elements according to their function in the context of a particular argument, together with the analysis beyond the level of what has been stated explicitly enabled a comprehensive understanding of how specific information, statements or assumptions are interpreted and utilized in arguments examined. Finally, the acknowledgment of the importance of `field-dependency' of argumentative discourse, through the consideration of the social context within which this discourse is embedded, elicited the way in which this context made employees' argumentation a meaningful and acceptable discourse in this particular setting.     

Dream research in schizophrenia: Methodological issues and a dimensional approach

Dreaming in patients with schizophrenia was and is of particular interest to researchers and clinicians due to the phenomenological similarities between the dreaming state and schizophrenic daytime symptomatology such as bizarre thoughts or hallucinations. Extensive literature reviews have shown that dream studies in the field of psychopathology often do not fulfill common scientific criteria. The present paper focuses on the methodological issues like sampling methods, the dream collection method, and dream content analysis that are crucial with regard to the validity of the findings. It is also suggested that the so-called dimensional approach (linking severity of daytime symptoms directly to specific dream characteristics) will be very helpful for identifying which psychopathological symptoms of schizophrenia are most closely linked to dream content.     

A program for psychological education: Some preliminary issues

The recent interest in personal and/or psychological education as an objective for school programs has created the necessity for the development of a careful theoretical framework. This paper examines the current status of theory vis à vis personal education and suggests a number of major issues for consideration. A toxonomy for personal education has yet to be developed. Concepts of emotions as “bad”, pathological, and private need revision. Also, it is suggested that adolescence as a stage of development comprehends a special set of theoretical questions which cannot be begged. Particular attention is directed at implications derived from a developmental framework suggested by Piaget in cognitive areas and by Kohlberg in moral growth. Such a framework connotes educational goals as objectives which avoid the problems inherent in other current theoretical frameworks.     

Methodological issues for evaluation of alcohol and other drug effects: Examples from flight-simulator performance

Individual differences and idiosyncratic responses to alcohol and other drugs present challenges to researchers concerning how tasks should be structured and performance analyzed. Defined scenarios allow operators to perform known maneuvers over a predetermined time course to the best of their abilities, whereas episodic scenarios embed specific situations into more dynamic, realistic, and interactive testing sessions. Degraded performance in the defined scenarios is easily defined as deviations from a hypothetically perfect performance profile, but assessment of alcohol and other drug effects on individual performances in dynamic situations requires flexible analytic procedures. An example of scoring an episodic flight scenario event using flight-simulator data is given, and an interactive analysis system developed to analyze idiosyncratic pilot responses is described.     

应用伦理学研究的几个方法论问题

无论在中国还是西方 ,应用伦理学研究都方兴未艾。在讨论应用伦理学问题和日常的道德问题时 ,人们往往各执一辞 ,互不相让。那么 ,究竟有没有某种相对客观的标准来解决人们之间的分歧 ,从而避免无谓、无效的争论呢 ?我认为要解决好这一问题 ,方法论至关重要。在这里我将根据自己教学研究的初步体会 ,谈谈研究应用伦理学的几个方法论问题 ,其中包括怎样评价各种道德理论和学术观点的优劣及其标准。1 关于道德论证的特点研究应用伦理学的最终目的是将人们的道德行为建立在理性 ,尤其是实践理性的基础上 ,而要达到这一目的 ,我认为主要的方法…     

Information processing in bilinguals: Some selected issues

Summary Issues concerning some perceptual, attentional, and memory processes in bilinguals are reviewed and discussed with regard to language dominance and the interaction between the bilingual's language systems. The first part of the paper focuses on the speed of basic decoding and encoding operations: speed (automaticity) of processing is considered to be a major factor in language dominance. Speed of perception and rehearsal is shown to be affected by covert pronounceability of words which is typically poorer for the bilingual's weaker language. Factors causing short-time changes in the relationship between the non-balanced bilingual's languages are then considered: high information load, noise, rapid switching, and language set. Noise is thought of as enhancing language dominance by two mechanisms: the masking of inner speech, and increased arousal. The second part of the paper focuses mainly on the interaction between the bilingual's language systems. The issue of language independence/interdependence is illustrated by a task involving parallel encoding and decoding; it is shown that the input switch which is considered to be automatic can select information by language. Experiments on memory are commented on with reference to the two major models of bilingual-storage systems: the common-store hypothesis, and the separate-stores hypothesis. While most experimental data are clearly supportive of the former, it is argued that both language-specific and language-free storage takes place, depending on task demands. The problem of the retention of language-information along with item-information in verbal learning tasks is then discussed: in addition to the specific task demands (e.g., meaningfulness), retention time appears to be a decisive factor here. A model of bilingual memory storage is suggested which combines the two extreme models (i.e., the shared and the separate ones). The model assumes that working memory plays a different role with regard to the language-free and the language-specific stores respectively. Finally, some problems in the use of more than one language in the process of verbal learning are pointed out.Most of the research work reported in this paper was supported by grants from the Swedish Council for Social Science Research (now the Swedish Council for Research in Humanities and Social Sciences).     

重症医学科临床思维几点探讨

重症医学科危重病患者病情变化的错综复杂和诊治方法的特殊性对重症医学科医生的临床思维提出了新的要求,哲学的思维方法显得非常重要;本文对重症医学科医生临床思维中需经常面临的系统与局部、循证与经验、多学科协作、临床与人文之间的关系等重要问题进行初步的哲学思考.