SPSS and SAS programs for comparing Pearson correlations and OLS regression coefficients

Several procedures that use summary data to test hypotheses about Pearson correlations and ordinary least squares regression coefficients have been described in various books and articles. To our knowledge, however, no single resource describes all of the most common tests. Furthermore, many of these tests have not yet been implemented in popular statistical software packages such as SPSS and SAS. In this article, we describe all of the most common tests and provide SPSS and SAS programs to perform them. When they are applicable, our code also computes 100 × (1 ? α)% confidence intervals corresponding to the tests. For testing hypotheses about independent regression coefficients, we demonstrate one method that uses summary data and another that uses raw data (i.e., Potthoff analysis). When the raw data are available, the latter method is preferred, because use of summary data entails some loss of precision due to rounding.     

Strategy Shifts and Expertise in Solving Transformation Rule Problems

The acquisition of expertise in formal problem solving has been assumed to involve either a shift from backwards to forwards inference, or a shift from unguided to guided forwards inference. In a longitudinal study, the acquisition of formal problem-solving expertise was investigated. Participants were tested as novices before undertaking controlled practice in the problem domain which involved transformation rule problems, and were finally tested as experts. The direction of inference in problem solutions was found to be inadequate to describe the strategic differences between novices and experts. Therefore, a new solution coding system was applied, based on atomic components of problem solution. Analysis of novice and expert solutions revealed no systematic strategy in the novice stage—solutions were confused and contained unproductive steps and backtracking. Several strategies were found in the expert solutions, but they did not agree with previously reported results. It was therefore proposed that the acquisition of expertise does not involve a change from one specific solution strategy to another, but rather the development of an efficient strategy, which can differ between participants.     

A systematic review of research on religion and spirituality in the Journal of Traumatic Stress: 1990–1999

Surveys reveal that religion and spirituality are highly valuable to many people in times of crisis, trauma, and grief. The relationship between coping with trauma and the use of various spiritual beliefs is well established. The importance of clergy in trauma recovery is also well documented. A review of the 469 research and non-research articles published between 1990 and 1999 in the Journal of Traumatic Stress revealed that 8.7% (6/69) of non-research articles, 4.1% (15/366) of quantitative research articles and 2.9% (1/34) of qualitative research articles considered religion or spirituality in their work. Analysis of variance found a significant overall increase in the percentage of articles that mentioned religion/spirituality between the first half (1990–1994) and the second half (1995–1999) of the study period. The results are discussed in the context of the trauma research and in comparison to related disciplines. Recommendations for future research and clinical application are suggested for both traumatologists and religious scholars.     

A Review of Mortality Research on Clergy and Other Religious Professionals

An exhaustive literature search was undertaken to find studies on mortality rates among clergy. A total of twelve studies, published between 1959 and 2000, were identified that examined mortality among American and European clergy. All but one of the reports found lower all-cause death rates for clergy compared to the people in general population of similar age. Protestant ministers consistently were found to have more than a 25% mortality advantage in various studies. Catholic nuns had a mortality advantage of roughly 20%–25%, whereas the mortality advantage of Catholic priests was just over 10%. Possible factors contributing to the lower death rates of clergy are discussed.     

The First-Order Theories of Dedekind Algebras

A Dedekind Algebra is an ordered pair (B,h) where B is a non-empty set and h is an injective unary function on B. Each Dedekind algebra can be decomposed into a family of disjoint, countable subalgebras called configurations of the Dedekind algebra. There are N₀ isomorphism types of configurations. Each Dedekind algebra is associated with a cardinal-valued function on omega called its configuration signature. The configuration signature of a Dedekind algebra counts the number of configurations in the decomposition of the algebra in each isomorphism type.The configuration signature of a Dedekind algebra encodes the structure of that algebra in the sense that two Dedekind algebras are isomorphic iff their configuration signatures are identical. Configuration signatures are used to establish various results in the first-order model theory of Dedekind algebras. These include categoricity results for the first-order theories of Dedekind algebras and existence and uniqueness results for homogeneous, universal and saturated Dedekind algebras. Fundamental to these results is a condition on configuration signatures that is necessary and sufficient for elementary equivalence.     

Double Agents

Jennifer Herdt's Putting On Virtue argues for the theological and normative superiority of noncompetitive accounts of divine and human agency. Although such accounts affirm the indispensability and sovereignty of divine grace they also acknowledge human agents as active participants in their own moral change. Indeed, Herdt contends we cannot coherently describe the human telos as entailing a transformation of character without affirming that human agents meaningfully contribute to that change. Nevertheless, a recurrent worry in Putting On Virtue is that persons may view their growth in virtue as a personal achievement and that the pleasure of positive self‐regard will displace disinterested—and hence truly virtuous—moral aspiration. This discussion of Herdt's volume sympathetically canvasses her argument. It then looks briefly at the reflexive structure of human agency to consider the relationship between the human telos and the transformation of character, and to encourage a more generous attitude toward positive self‐regard.     

Cognitive processing and time perception

When a visual field is presented for 40 or 80 msec and a subject is asked to judge the duration of the stimulus, judged duration is found to be less when the field is blank than when the field contains three letters, but is the same whether the three letters form a word or not. The perceived difference between “filled” and “blank” fields increases when the subject is required to memorize the presented letters. These data are consistent with a theory which assumes,inter alia, that a stimulus is analyzed by a visual information processor and a timer, that attention is shared between these processors, and that temporal judgments are based on the output of both processors.     

Factor Structure of the Torrance Tests of Creative Thinking Verbal Form B in a Spanish‐speaking Population

The objective of this study was to compare, through a Confirmatory Factor Analysis, two different theoretical models that explain the operationalized creativity construct with the Verbal Torrance Tests of Creative Thinking (TTCT), Form B. Model 1 is represented by six factors which correspond to each activity and its respective indicators while Model 2 is integrated by three factors which correspond to each TTCT ability (i.e., Fluency, Originality, and Flexibility) and the corresponding indicators for each variable. The study was carried out with a sample consisting of 432 Spanish‐speaking youngsters of both sexes aged 15–26. According to the research findings, the model which showed the most satisfactory fit identifies six correlated factors that correspond to each of the activities proposed (χ² = 414.48; df = 116; χ²/df = 3.57; GFI = .90; NFI = .95; CFI = .96 and RMSEA = .077). These results are discussed according to its psychometric implications for the construct assessment in different fields.