Detection of symmetry in tachistoscopically presented dot patterns: Effects of multiple axes and skewing

We examined the effects of multiple axes and skewing on the detectability of symmetry in tachistoscopically presented (100-msec) dot patterns to test the role of normal grouping processes based on higher order regularities in element positions. In addition to the first-order regularities of orientational uniformity and midpoint collinearity (Jenkins, 1983), bilateral symmetry (BS) gives rise to second-order relations between two pairs of symmetric elements (represented by correlation quadrangles). We suggest that they allow the regularity (i.e., BS) to emerge simply as a result of the position-based grouping that takes place normally, so that no special symmetry-detection mechanism has to be postulated. In combination with previously investigated variables— number and orientation of axes—we introduced skewing (resulting from orthographic projection of BS) to manipulate the kind and number of higher order regularities. In agreement with our predictions, the data show that the effect of skewing angle (varied at three 15° steps, clockwise and counterclockwise) on the preattentive detectability of symmetry (measured with d’) increases as the number of axes decreases. On the basis of some more specific findings, we suggest that it is not as much the number of correlation quadrangles that determines the saliency of a regularity as it is the degree to which they facilitate or “bootstrap” each other.     

Parenting and adolescent problem behavior: an integrated model with adolescent self-disclosure and perceived parental knowledge as intervening variables

Parental monitoring, assessed as (perceived) parental knowledge of the child's behavior, has been established as a consistent predictor of problem behavior. However, recent research indicates that parental knowledge has more to do with adolescents' self-disclosure than with parents' active monitoring. Although these findings may suggest that parents exert little influence on adolescents' problem behavior, the authors argue that this conclusion is premature, because self-disclosure may in itself be influenced by parents' rearing style. This study (a) examined relations between parenting dimensions and self-disclosure and (b) compared 3 models describing the relations among parenting, self-disclosure, perceived parental knowledge, and problem behavior. Results in a sample of 10th- to 12th-grade students, their parents, and their peers demonstrated that high responsiveness, high behavioral control, and low psychological control are independent predictors of self-disclosure. In addition, structural equation modeling analyses demonstrated that parenting is both indirectly (through self-disclosure) and directly associated with perceived parental knowledge but is not directly related to problem behavior or affiliation with peers engaging in problem behavior.     

A developmental contextual perspective on identity construction in emerging adulthood: change dynamics in commitment formation and commitment evaluation

A developmental contextual test of a dual-cycle model of identity formation is presented. In addition to a commitment-formation cycle-represented by Marcia's (1966) classical dimensions of exploration in breadth and commitment making--the model comprises a commitment-evaluation cycle--constituted by 2 additional dimensions of exploration in depth and identification with commitment. In a sample of 402 college students assessed 4 times over 2 years, both dimensions of the commitment-formation cycle and exploration in depth increased across time. Identification with commitment showed a slight decrease across time. Latent growth curve (LGC) modeling analyses indicated that the 2 identity cycles are interwoven in a dynamic interplay that defines identity formation. Contextual influences on identity development were identified through a natural experiment. Commitment evaluation constituted the core identity cycle in the normative-progression group (i.e., students who moved on to the sophomore year). Both commitment formation and commitment evaluation were at work in the reorientation group (i.e., students who repeated their freshman year or changed their major). Implications and suggestions for future research are discussed.     

Why are unemployed aged fifty and over less likely to find a job? A decomposition analysis

Reemployment chances for unemployed aged fifty and over are low compared to those of younger persons. To explain the different chances, the job search literature has largely focused on the job search behavior of unemployed individuals. Based on job search models, we propose that not only job search behavior, but also wage setting behavior, attitudinal variables and personal variables impact the difference in reemployment opportunities. Besides gaining insight into which variables explain the difference in reemployment opportunities, we also test how much of the difference each of these variables explains. We do this by drawing on a decomposition analysis. Using data from 647 recently unemployed, we find that about one third of the reemployment gap can be explained by the variables suggested by job search models, mostly in terms of age differences in search behavior, educational levels and reservation wage. Hence, about 70 % can be ascribed to other factors, such as employer preferences for those aged between 18 and 49. Implications of these results for theory, policy and practice are discussed.     

Exploring Perceptions of Group Processes in Ice Hockey Officiating

Understanding factors that influence sport officials' performance is vital to ensuring fair sport competition. Through semistructured interviews (N = 17), we explored officials' perceptions of group processes that occurred among ice hockey officiating teams. Participant responses revealed numerous ways that group processes were present within officials' interactions, and two unique characteristics involved the transient nature of officiating groups (frequently performing with different officials) and intrateam competition pertaining to postseason assignments. In the discussion, we expand on the unique nature of officiating groups, synthesize activities in which officials seek to enhance groupness, and provide insights for future interventions and researchers.     

Loneliness and Attitudes Toward Being Alone in Belgian and Chinese Adolescents: Examining Measurement Invariance

Loneliness is an adverse phenomenon that tends to peak during adolescence. As loneliness is a subjective state, it is different from the objective state of being alone. People’s attitudes toward being alone can be more or less negative or positive. Cultures differ in the form and meaning of social behavior, interpersonal relationships, and time spent alone. However, for cross-cultural comparisons to be meaningful, measurement invariance of the measure should be established. The present study examined measurement invariance of the Loneliness and Aloneness Scale for Children and Adolescents (LACA) in a sample of 218 Belgian and 190 Chinese early adolescents, aged 11–15 years. Using nested multigroup confirmatory factor analyses, measurement invariance of the LACA across Belgium and China was established. More specifically, evidence was found for configural, metric, and partial scalar invariance. Because partial scalar invariance was established, the two cultural groups could be compared. No significant differences were found for peer-related loneliness. Regarding the attitudes toward aloneness, Belgian adolescents were more negative and less positive toward being alone than Chinese adolescents. The present study is encouraging for researchers who want to use the LACA for cross-cultural comparisons, in that we found evidence for measurement invariance across two disparate cultural groups speaking completely different languages.     

Flexible job search behaviour among unemployed jobseekers: antecedents and outcomes

The interest in flexible job search behaviour (FJSB) among unemployed jobseekers, i.e., the extent to which jobseekers also look for jobs that deviate from their studies and earlier work experience, has grown considerably in recent years. Yet, there is large disagreement on both its consequences and drivers. Career scholars as well as policymakers believe that FJSB is important for unemployed and can improve their employment prospects. However, evidence from human resource (HR) literature raises doubts whether FJSB can enhance re-employment success. Similarly, whereas the career literature links FJSB to positive attitudes, such as career adaptability, the HR literature suggests that people searching flexibly may feel pushed into this behaviour due to more negative reasons, like few labour market perspectives. The aim of this study is examining these opposing expectations. We focus on three FJSB types: flexibility with respect to pay/hierarchical level, skill use and commuting time. Hypotheses are tested using two-wave data with 672 unemployed. Results indicate, among others, that career-adaptable people are not inclined to search more flexibly. In addition, FJSB may in certain cases hamper people’s re-employment likelihood. People searching more flexibly also more often became underemployed and as such experienced a more negative job quality.     

Cultural Blankets: Epistemological Pluralism in the Evolutionary Epistemology of Mechanisms

Journal for General Philosophy of Science - In a recently published paper, we argued that theories of cultural evolution can gain explanatory power by being more pluralistic. In his reply to it,...     

The effect of guiding questions on students’ performance and attitude towards statistics

Background. In this study, the effect of guidance on students’ performance was investigated. This effect was hypothesized to be manifested through a reduction of cognitive load and enhancement of self‐explanations. Aim. The goal of this study was to investigate the effect of guiding questions on students’ understanding of statistics. Sample and Method. In an experimental setting, two randomly selected groups of students (N= 49) answered achievement and transfer questions on statistics as a measure of performance. Students in the intervention condition were given guiding questions to direct their way of reasoning before they answered the achievement questions. The students in the control condition were asked to write down their way of thinking before they answered the same achievement questions. In this way, both groups were stimulated to self‐explain, but only the reasoning processes of the students in the intervention condition were guided. Results and Conclusion. It was found that students in the intervention condition performed significantly better on achievement and transfer questions and that this effect of guidance was mediated by self‐explanations. Attitude towards statistics was positively related to performance.     

Perceived parenting and separation-individuation in Belgian college students: associations with emotional adjustment

The present study examined associations among perceived parenting, separation-individuation, and emotional adjustment in a convenience sample of college students in Belgium (N=350; 68% female; aged 18 to 26). In line with a conceptual model advanced in the literature, factor analysis supported the distinction between three dimensions of separation-individuation: overdependence and healthy separation (both of which had already been described in earlier research) and a new dimension, labeled excessive autonomy. Path analysis findings were consistent with a mediational model in which lower quality of perceived parenting predicted more excessive autonomy, which in turn predicted poorer emotional adjustment. In addition, healthy separation predicted superior emotional adjustment, whereas overdependence was not associated with this particular type of adjustment. Implications for current understanding of the process of separation-individuation in college students and of excessive autonomy, in particular, are discussed.