Collective dimensions of reliability: Some lines of research

Abstract

System reliability depends on the quality of the coupling between the human and technical components of the system, hence the term “sociotechnical reliability”. The present article is more particularly devoted to the collective dimensions of sociotechnical reliability, and especially the role played by collective activity. Essentially, the aim is to propose a general model of analysis of some of the major features of this role. This model makes explicit the notion of coupling and the regulation loops which accompany the implementation of the activity. The role played by task characteristics (type of task, allocation of tasks within the group, means of co-ordination), group characteristics (composition, collective bias), and coupling characteristics (task versus group structure, contingency model, computer-assisted groups) are examined in turn. Finally, the characteristics of the collective activity itself are discussed: relations to prescribed task, common collective field of reference, communications, self-management of reliability, etc. The model allows collection and organization of knowledge on the themes discussed and, at the same time, supplies a grid for a first analysis of collective activity for the study of reliability.     

Selective and faithful imitation at 12 and 15 months

Research on imitation in infancy has primarily focused on what and when infants imitate. More recently, however, the question why infants imitate has received renewed attention, partly motivated by the finding that infants sometimes selectively imitate the actions of others and sometimes faithfully imitate, or overimitate, the actions of others. The present study evaluates the hypothesis that this varying imitative behavior is related to infants' social traits. To do so, we assessed faithful and selective imitation longitudinally at 12 and 15 months, and extraversion at 15 months. At both ages, selective imitation was dependent on the causal structure of the act. From 12 to 15 months, selective imitation decreased while faithful imitation increased. Furthermore, infants high in extraversion were more faithful imitators than infants low in extraversion. These results demonstrate that the onset of faithful imitation is earlier than previously thought, but later than the onset of selective imitation. The observed relation between extraversion and faithful imitation supports the hypothesis that faithful imitation is driven by the social motivations of the infant. We call this relation the King Louie Effect: like the orangutan King Louie in The Jungle Book, infants imitate faithfully due to a growing interest in the interpersonal nature of interactions. A video abstract of this article can be viewed at http://youtu.be/qlnIof1k-u8 .     

Do subitizing deficits in developmental dyscalculia involve pattern recognition weakness?

The abilities of children diagnosed with developmental dyscalculia (DD) were examined in two types of object enumeration: subitizing, and small estimation (5–9 dots). Subitizing is usually defined as a fast and accurate assessment of a number of small dots (range 1 to 4 dots), and estimation is an imprecise process to assess a large number of items (range 5 dots or more). Based on reaction time (RT) and accuracy analysis, our results indicated a deficit in the subitizing and small estimation range among DD participants in relation to controls. There are indications that subitizing is based on pattern recognition, thus presenting dots in a canonical shape in the estimation range should result in a subitizing‐like pattern. In line with this theory, our control group presented a subitizing‐like pattern in the small estimation range for canonically arranged dots, whereas the DD participants presented a deficit in the estimation of canonically arranged dots. The present finding indicates that pattern recognition difficulties may play a significant role in both subitizing and subitizing deficits among those with DD.     

Job insecurity climate's influence on employees' job attitudes: Evidence from two European countries

An important amount of literature about job insecurity and its consequences has been developed during the past few decades (Sverke, Hellgren, & Näswall, 2002 Sverke, M., Hellgren, J. and Näswall, K. 2002. No security: A meta-analysis and review of job insecurity and its consequences. Journal of Occupational Health Psychology, 7(3): 242–264. [Crossref], [PubMed] , [Google Scholar]). Most of this research has focused on an individual-analysis perspective, without taking into account social context. Although job insecurity climate has not been empirically examined, several authors have implicitly assumed that job insecurity contexts exist in some organizations where layoffs have occurred. Therefore, they examined layoff survivors' reactions. From this perspective, the aim of this study was to validate the job insecurity climate concept and examine its influence on employees' job attitudes. In order to provide additional support, this objective was examined in two samples: 428 employees belonging to 20 Spanish organizations and 550 employees in 18 Belgian organizations. The results showed that job insecurity climate emerged within the organizations in both samples, and that it influenced employees' job satisfaction and organizational commitment above and beyond individual perceptions of job insecurity in the Spanish sample. The implications and limitations of this study are discussed.     

Ambivalence over emotional expression and symptom attribution are associated with self‐reported somatic symptoms in Singaporean school adolescents

Although somatization is common across cultures, its meanings may differ as culture shapes emotional experience. Thus, instead of treating somatization as a form of psychopathology, it is more useful to conceptualize it as an idiom of distress, and how complaints of somatic symptoms are related to social relationships, patterns of emotional expression and symptom attribution in a cultural context. This study seeks to explore whether ambivalence over emotional expression and causal attribution would shed light on the meanings of somatization among Asian adolescents. Three hundred secondary school adolescents in Singapore participated in this study. The main results show that emotional ambivalence, biomedical and Traditional Chinese Medicinal causal beliefs, and magical attribution contributed to additional variance in somatic symptoms over and above the variance explained by emotional distress. These findings are discussed from both psychological and cultural perspectives.     

The importance of social and ideal social dimensions in self‐congruity research

Chronic or situational self‐construal moderates the effects of four self‐congruity (SC) dimensions (i.e., actual, ideal, social, and ideal social) on brand evaluations. Past research has mainly focused on the actual and ideal SC effects; these effects have been found to be stronger than the social and ideal social SC effects. However, the findings of past research are based on samples from individualistic cultures. Individualists have a dominant independent self‐construal. We conduct two experiments to show that the social and ideal social SC effects are stronger than the actual and ideal SC effects for individuals with a dominant interdependent self‐construal. In Study 1, using samples from collectivistic cultures, four SC effects are compared. In Study 2, we examine how primed self‐construal, whether independent or interdependent, impacts the four SC effects. This research documents the importance of the social and ideal social dimensions in SC research.     

Aging and Remote Memory Declines: Preliminary Findings

Relatively little research has examined the effect of aging upon remote memory, especially among individuals who have entered their 10th decade of life. The present study examined whether remote memory deteriorates in a group of 132 neurologically normal men and women ranging in age from 50 to 97. Remote memory was measured with a modification of the Presidents Test. The data revealed that higher levels of education corresponded with better remote memory. Additionally, age-related differences in memory occurred only in men, with those aged 90 years and older showing significantly worse remote memory than other age groups. Potential explanations and implications of these data are delineated.