Loss and persistence of implicit memory for sound: Evidence from auditory stream segregation context effects

An important question is the extent to which declines in memory over time are due to passive loss or active interference from other stimuli. The purpose of the present study was to determine the extent to which implicit memory effects in the perceptual organization of sound sequences are subject to loss and interference. Toward this aim, we took advantage of two recently discovered context effects in the perceptual judgments of sound patterns, one that depends on stimulus features of previous sounds and one that depends on the previous perceptual organization of these sounds. The experiments measured how listeners’ perceptual organization of a tone sequence (test) was influenced by the frequency separation, or the perceptual organization, of the two preceding sequences (context1 and context2). The results demonstrated clear evidence for loss of context effects over time but little evidence for interference. However, they also revealed that context effects can be surprisingly persistent. The robust effects of loss, followed by persistence, were similar for the two types of context effects. We discuss whether the same auditory memories might contain information about basic stimulus features of sounds (i.e., frequency separation), as well as the perceptual organization of these sounds.     

Measurement of newcomer socialization: Construct validation of a multidimensional scale

A construct validation approach was taken to develop a primary measure of newcomer socialization that addresses shortcomings with a prior scale (Chao, Kelly, Wolf, Klein, & Gardner, 1994). Three separate groups of subject matter experts reviewed items to ensure the content validity of the Newcomer Socialization Questionnaire (NSQ). Studies 1 and 2 examined the NSQ’s psychometric properties using employed students and organizational newcomers as participants, respectively. Results illustrate scale reliability, factor structure, convergent and discriminant validity, and correlations with criterion variables. The NSQ measures three dimensions or domains of newcomer socialization: the organization, the group and the job/task. In addition, both factual knowledge and knowledge of expected role behaviors are assessed within each domain. Thus, the NSQ provides a useful measurement tool for researchers and practitioners interested in examining direct outcomes of being socialized.     

The Roots of Public Attitudes Toward State Accommodation of European Muslims' Religious Practices Before and After September 11

More than nine million Muslims currently live in Western Europe, which makes them the largest religious minority in the region. There has been significant political controversy in various European states over how best to recognize Muslims' religious rights. These questions have become even more significant and contentious in the aftermath of the September 11 attacks by Islamic extremists. Using privately commissioned polls on attitudes toward Muslim religious rights taken before and after September 11 in Britain, France, and Germany, this article determines the extent of popular opposition to state accommodation of Muslim practices and tests several leading theories of attitudes toward Muslims. We conclude that the most important determinants of attitudes toward Muslims are education and religious practice.     

The Growing Use of Firearms by Suicidal Older Women, 1979–1992: A Research Note

Suicide among older women (65 +) has received very little attention despite increasing numbers of suicides in this population. An examination of national mortality data from the National Center for Health Statistics for the years 1979 through 1992 shows an increasing trend in rates of suicide among older women and a declining trend among women under 65. Over the 14-year period, firearms replaced poisoning as the most prevalent method of suicide by women 65 and over. The results seem consistent with the assertion that the availability, familiarity, and cultural acceptability of firearms may play a role in the choice of suicide method among older women. Although violent death and the use of firearms are generally associated with males in our society, the trends reported here indicate that greater attention to firearm suicides among older women is warranted.     

Conceptual models and task representation in using a command language

In most cases, there is no direct correspondence between the objectives that users of an interactive device may be led to formulate and the commands that enable them to attain those objectives. In order to set up what Young (1981) calls a “mapping” between the “task and action arenas”, users must (1) reorganize their objectives in order to adapt them to the capabilities of the device and (2) if necessary, combine several commands to reach a given objective. In doing so, they are assumed to rely on a “conceptual model” of the device, a notion whose cognitive status remains to be clarified. In this article, the editing keys of the MS/DOS operating system are taken as an example and described according to two different conceptual models. The links between the task and action arenas, in these two conceptual models and in a third one called the “mixed model”, are analysed in detail. Finally, the performance of three groups of subjects, while editing a line of text, are compared. All three of the dependent variables analysed are shown to vary according to how the objective is assumed to be formulated in the three conceptual models. Some hypotheses are presented concerning the cognitive mechanisms involved in such a situation.