Using Innovative Outliers to Detect Discrete Shifts in Dynamics in Group-Based State-Space Models

Outliers are typically regarded as data anomalies that should be discarded. However, dynamic or “innovative” outliers can be appropriately utilized to capture unusual but substantively meaningful shifts in a system's dynamics. We extend De Jong and Penzer's 1998 approach for representing outliers in single-subject state-space models to a group-based framework. The group-based model enables model predictions concerning the group as a whole while individualized change points are incorporated to capture discrete shifts in each individual's trajectory. An illustrative example using cognitive performance data from N = 38 older adults over 60 days is presented. Results indicated that a subset of older adults showed sudden shifts in learning dynamics in several forms, including sudden jumps in level, slope, and linkage between perceived control and actual performance level. The broader implications of incorporating innovative outliers into studies of intraindividual change are discussed.     

Religion and Spirituality in Lonely Planet's India

For years, the authors of the best-selling guide to India, Lonely Planet, has shaped the perspectives of many travellers. This article considers how religion is constructed as a category and how it is made relevant to travellers. I argue that ‘religion’ comes in two versions, one pertaining to the Indian hosts and one to travellers. Religion is based on tradition, faith and historical institutions, whose members, rituals and sacred sites are of interest to travellers. Spirituality has to do with the personal development of travellers and is exclusively referred to as philosophy.     

How much can you bend before you break: An experience of using constructionist consulting as a tool for organizational learning in the corporate world

This article reflects upon the experience the authors had in the process of designing and facilitating a year-long leadership development class within a division of a high-tech manufacturing corporation in the USA. The design reflected narrative (Simons, 1997; Epston & White, 1990), feminist (Ferguson, 1984; Ramsey & Calvert, 1994), and constructionist principles, and was implemented as a “learning-in-organizing process” (Abma, this issue). We have structured the article to capture the dynamic nature of this process. This includes a discussion of how we as “outsider” class instructors and “insider” participants negotiated and renegotiated the design of the class as well as the effects of these “relational negotiations” on our collective learning. We end with a consideration of the implications of our “learning-in-organizing” for other constructionist consultants (Campbell, Caldicott, & Kinsella, 1994) who are translating organizational learning theories into practice.     

Self-improvement and cooperation: How exchange relationships promote mastery-approach driven individuals' job outcomes

In the present research we argue that mastery-approach goals may be beneficial in social achievement contexts because these goals lead to constructive exchange relationship building. An examination of three methodologically complementary studies revealed that mastery-approach goals lead to more cooperative and higher-quality exchange relationships than performance-approach goals and are, ultimately, associated with better job outcomes, as well. The results of a questionnaire study demonstrated that mastery-approach goals are more strongly related to cooperative motives and more weakly related to competitive motives than performance-approach goals. Furthermore, an experimental study indicated that mastery-approach driven individuals show a higher concern for others and are more strongly inclined to cooperate with an exchange partner when engaged in a complex reasoning task than performance-approach driven individuals. Finally, an organizational field study showed that team–member exchange mediates the effect of mastery-approach goals on job performance, job satisfaction, and organizational commitment.     

Lean on me: The importance of one's own and partner's intercultural personality for expatriate's and expatriate spouse's successful adjustment abroad

This research explores the role of three intercultural personality traits—emotional stability, social initiative, and open-mindedness—as coping resources for expatriate couples’ adjustment. First, we examined the direct relationships of expatriates’ and expatriate spouses’ personality trait levels with psychological and sociocultural adjustment. Psychological adjustment refers to internal psychological outcomes such as mental health and personal satisfaction, whereas sociocultural adjustment refers to more externally oriented psychological outcomes that link the individual to the new environment. Second, we examined the association of expatriates’ personality trait levels with professional adjustment, which was defined in terms of job performance and organizational commitment. Cross-sectional analyses among 196 expatriates and expatriate spouses (i.e., 98 expatriate couples) revealed that the three dimensions are each associated with specific facets of adjustment. A longitudinal analysis among a subsample (45 couples) partially confirmed these findings. Furthermore, we obtained evidence for a resource compensation effect, that is, the compensatory process whereby one partner's lack of sufficiently high levels of a certain personality trait is compensated for by the other partner's high(er) levels of this traits. Through this resource compensation effect, the negative consequences of a lack of sufficient levels of a personality trait on adjustment can be diminished. Apparently, in the absence of sufficiently high trait levels, individuals can benefit from personality resources in their partners.     

Age Differences in Output-Monitoring Accuracy

ABSTRACT

Output monitoring refers to memory for whether an intended action has been completed. Failures in output monitoring can lead to action repetitions or action omissions. Output monitoring is difficult for both younger and older adults, but few studies have examined age differences in output monitoring. Two experiments using a picture-based prospective memory task with an output-monitoring component were conducted to investigate the role of increased contextual detail and pre-exposure on output-monitoring accuracy in younger and older adults. Across the two experimental manipulations older adults demonstrated less accurate output monitoring by primarily committing errors of repetition. Pre-exposure to targets resulted in worse output-monitoring accuracy for both younger and older adults.     

Conditioned water affects pair formation behaviour in the marine polychaete Neanthes (Nereis) acuminata

Assessing cues from conspecifics is paramount during mate choice decisions. Neanthes acuminata is a marine polychaete with a unique life cycle: pair formation, female death following reproduction, male parental care and male ability to mate again after egg care. Males completing such egg care are ‘experienced’. Females have been shown to prefer experienced males over all others, including aggressively dominant males. As the female dies following reproduction, the reproductive success of her offspring depends upon successful parental care by the male. It is therefore vital that the female makes a good mate choice decision. This paper shows that the use of conditioned water from males caring for eggs and newly experienced males caused the female to alter her choice to a previously undesired male. However, conditioned water from males, which had reproduced but were isolated for 2 weeks, did not have the same effect on pairing behaviour. This indicates that the smell of experience is short lived.     

Executive control in the Simon task: A dual-task examination of response priming and its suppression

Executive control processes are supposed to regulate behaviour and to resolve conflicts in information processing. Recently, Stürmer and colleagues (Stürmer et al., 2002; Stürmer & Leuthold, 2003) reported electrophysiological findings in a Simon task that indicated control over a location-based processing route that mediates response priming. Importantly, when a response conflict occurred on a given trial, a suppression of response priming on the immediately following trial was demonstrated. The present study examines boundary conditions of such control in the Simon paradigm by comparing single-task with dual-task performance. In four experiments a second task, alternating trial-by-trial with the Simon task, was systematically manipulated in its control demands. Whereas reaction time (RT) analysis of single-task conditions revealed the absence of location-based response priming in the Simon task, such priming reappeared when the second task required an overt response. In contrast, working memory load as such did not touch the Simon effect. Therefore, not the response conflict itself but capacity-limited response monitoring processes seem to be critical for executive control in the Simon task and the suppression of response priming.     

Suppression-induced forgetting on a free-association test

The repeated suppression of thoughts in response to cues for their expression leads to forgetting on a subsequent test of cued recall (Anderson & Green, 2001). We extended this effect by using homograph cues and presenting them for free association following suppression practice. Cue–target pairs were first learned under integrating imagery instructions; then in the think/no-think phase students practised suppressing thoughts connected to some homograph cues, with or without the assistance of thought substitutes that changed their meaning. Below-baseline forgetting on the subsequent free-association test was found in the production of suppressed targets. Following aided suppression this effect was also obtained in the production of other responses denoting the target-related meaning of the homograph cues. Discussion emphasises the ecological value of the test; rarely do people deliberately attempt recall of unwanted thoughts.     

The impact of error frequency on errorless and errorful learning of object locations using a novel paradigm

ABSTRACT

Errorless learning (EL) is an approach in which errors are eliminated or reduced as much as possible while learning of new information or skills. In contrast, during trial-and-error???or errorful???learning (TEL) errors are not reduced and are often even promoted. There is a complex and conflicting pattern of evidence whether EL or TEL may result in better memory performance. One major confound in the extant literature is that most EL studies have not controlled for the number of errors made during TEL, resulting in a large variability in the amount of errors committed. This variability likely explains why studies on the cognitive underpinnings of EL and TEL have produced mixed findings. In this study, a novel object-location learning task was employed to examine EL and TEL in 30 healthy young adults. The number of errors was systematically manipulated, allowing us to investigate the impact of frequency of errors on learning outcome. The results showed that recall from memory was significantly better during EL. However, the number of errors made during TEL did not influence the performance in young adults. Altogether, our novel paradigm is promising for measuring EL and TEL, allowing for more accurate analyses to understand the impact of error frequency on a person’s learning ability and style.