Internal consistency of the Sport Competition Anxiety Test

The Sport Competition Anxiety Test was administered to 77 university athletes, 55 men and 22 women whose ages ranged from 18 to 27 yr., to ascertain internal consistency of responses to the questionnaire. Both methods used (Guttman and Kuder-Richardson) indicated that the test satisfied the basic requirements with regard to interitem consistency normally imposed for self-report inventories: .85 and .82, respectively.     

The influence of pyrithioxine on certain factors of intelligence

A double-blind trial with pyrithioxine was made with 22 pairs of visually handicapped children who were equal in IQ scores and in chronological age. Although an improvement of abstraction ability was noticed, the overall results were not in concurrence with the general tendency in relevant literature.This paper is an abstract from a master's thesis in psychology submitted to the University of Stellenbosch.     

The detection of anisochrony in monaural and interaural sound sequences

Nakao and Axelrod (1976) and van Noorden (1975) showed that the threshold for discriminating an anisochronous duple rhythm (a series of clicks with a temporal offset on every other one) from an isochronous rhythm (no offset) is poorer when the clicks are presented alternately to the two ears than when they are presented to the same ears. Van Noorden reported that the difference between the thresholds in the alternating and nonalternating conditions varied with the tempo of the sequence. Nakao and Axelrod found invariance of this threshold difference with sequence speed. According to our quantification of temporal processing of interaural sequences, the latter result should be expected. We carried out five psychophysical experiments to establish interaural and monaural discrimination between isochronous and anisochronous rhythms. Across experiments, base time intervals of 60–720 msec were spanned. The main result was that we replicated the poorer discrimination for interaural sequences. This deterioration in discrimination was the same for all sequence speeds. It was also the case that the thresholds were almost constant up to a sound repetition rate of about 3 per second, but increased linearly with slower rates. This result supports evidence in the literature that temporal processing of sequences faster than about 3–4 sounds per second differs from temporal processing of slower sequences.     

Social comparison and the drive upward revisited: Affiliation as a response to marital stress

To test theoretical ideas derived from classic and recent social comparison theory, two studies examined affiliative tendencies as a response to marital problems among individuals varying in marital dissatisfaction. Study 1 (n. = 632) showed that the higher the degree of marital dissatisfaction and the higher the uncertainty about how things are going in one's marriage, the stronger was the desire for affiliation (operationalized as the desire to talk with others about one's marriage). Moreover, among individuals high in marital dissatisfaction, a preference for upward affiliation was found, i.e. for contact with others having better marriages. Individuals with lower levels of dissatisfaction preferred affiliation with similar others. Women experienced more uncertainty and a stronger affiliative tendency than men. In Study 2 (n = 233), these findings were largely replicated. Moreover, it was shown that the desire to affiliate when facing marital stress was particularly strong among individuals high in interpersonal orientation.     

Performance‐based pay is fair,particularly when I perform better: differential fairness perceptions of allocators and recipients

We examined in two experiments the impact of the roles that people enact (allocator or recipient) and performance attributions (talent or effort) on fairness perceptions of pay systems (performance‐based pay or job‐based pay). To test the relative effects of the roles that people enact, in the control conditions, participants were asked to evaluate the fairness of both allocation norms from ‘behind a veil of ignorance’ (Rawls, 1971 ). As hypothesized, the results consistently demonstrate that whereas recipients were biased in their fairness perceptions, allocators tended to be non‐biased in their fairness perceptions. The self‐interest bias among recipients was particularly strong when talent rather than effort attributions were imposed on them. Copyright © 2005 John Wiley & Sons, Ltd.     

John Calvin on the Christian's Social Responsibility: Cultural Activist or “Modest Social Reformer”?

Recently there have been heated discussions between Reformed theologians who embrace the two‐kingdoms doctrine and proponents of the Neo‐Calvinist tradition on whether Calvin held social transformationist views. This article examines the debate and argues that Calvin did not interpret the kingdom as a progressive social‐transforming reality that gradually establishes God's future eschatological reign on earth. Instead, he regarded Christ's present reign as a “backward”‐reaching reality that restores God's original created order. At the same time Calvin did not make a sharp categorical distinction between the spiritual and civil realms but depicted the civil and spiritual order as two regiments of God's one reign that mutually aid and assist each other.     

Out with .05, in with Replication and Measurement: Isolating and Working with the Particular Effect Sizes that are Troublesome for Inferential Statistics

It is difficult to obtain adequate power to test a small effect size with a set criterion alpha of 0.05. Probably an inferential test will indicate non-statistical significance and not be published. Rarely, statistical significance will be obtained, and an exaggerated effect size calculated and reported. Accepting all inferential probabilities and associated effect sizes could solve exaggeration problems. Graphs, generated through Monte Carlo methods, are presented to illustrate this. The first graph presents effect sizes (Cohen's d) as lines from 1 to 0 with probabilities on the Y axis and the number of measures on the X axis. This graph shows effect sizes of .5 or less should yield non-significance with sample sizes below 120 measures. The other graphs show results with as many as 10 small sample size replications. There is a convergence of means with the effect size as sample size increases and measurement accuracy emerges.     

The influence of mastery‐avoidance goals on performance improvement

Two experiments focused on examining the influence of mastery‐avoidance goals on performance improvement, and more specifically, on mastery‐avoidance goals grounded in an intrapersonal standard. That is, herein, mastery‐avoidance goals entail striving to avoid doing worse than one has done before. Both experiments demonstrated that in a multiple‐trial context, mastery‐avoidance goals are deleterious for performance improvement relative to mastery‐approach, performance‐approach, and performance‐avoidance goals, and a no goal baseline. The findings were shown to be independent of participants' perceptions of goal difficulty, and were consistent not only across methodology but also across type of participant (undergraduates versus individuals in the workforce), and type and length of achievement task (a verbal skills task versus an ecologically valid managerial competencies exercise). Copyright © 2009 John Wiley & Sons, Ltd.     

On the link between different combinations of Negative Affectivity (NA) and Positive Affectivity (PA) and job performance

Despite the assumed orthogonality of Negative Affectivity (NA) and Positive Affectivity (PA), the effects of the different combinations of NA and PA on work-related outcomes such as job performance have been neglected. The present study among 42 employees of a local social services department in the Netherlands was conducted to fill this gap. The results show that a negative link between NA and job performance (as assessed by the immediate supervisor) exists only when PA is low. This finding elucidates the role of dispositional affect in organizational research and emphasizes that the interaction between both affectivity dimensions should be included when studying how affect relates to job performance and other work-related outcome variables.     

Does the feedback from previous trials influence current decisions? A study on the role of feedback processing in making decisions under explicit risk conditions

Decision situations frequently provide information about the amount of gains and losses and winning probabilities. In decisions under these conditions, also called risk conditions, both the use of feedback and executive functions have been shown to influence the decision‐making process, as revealed in different patient populations. However, the influence of offering feedback in tasks examining decisions under risk conditions has not been investigated experimentally, so far. This was the aim of the present study. For this purpose, a sample of healthy individuals was examined with the Game of Dice Task, a decision‐making task that explicitly provides the rules for gains and losses and in which participants receive feedback after each trial. In addition, a modified version of this task was performed, in which the feedback after each trial and all associated feedback components were removed. Results indicate that participants had a lower performance in the modified Dice Task without feedback. They selected the disadvantageous alternatives more frequently, when they did not receive feedback following their choices. Task performance in either version was correlated with executive functioning. Conclusion: In decisions under risk conditions, both executive functions as well as the use of feedback following previous trials are important components for optimal performance. Results have implications for the interpretation of deficient decision making in patients with neuropsychological impairments as both disturbances in categorization and other cognitive processes as well as emotional dysfunctions can compromise decision making in risky situations.