The Universal Principles of Evolution

Here we identify the core properties of genetic evolution with the intention of providing a unified definition of evolving systems that applies unequivocally in the natural and social sciences. Our definition is: evolution sustains organized systems through high fidelity replication of information. This definition can be broken down into five essential components: (1) high fidelity replication of information with 0% < survival rate < 100%; (2) expendable replication technology distinct from the replication information; (3) inert information that provides no kinetic energy to the replication process; (4) demonstrates a quantifiable resistance to entropy; (5) demonstrates intentionality.     

Canonical Correlation and Chi-Square: Relationships and Interpretation

A 2 × 2 chi-square can be computed from a phi coefficient, which is the Pearson correlation between two binomial variables. Similarly, chi-square for larger contingency tables can be computed from canonical correlation coefficients. The authors address the following series of issues involving this relationship: (a) how to represent a contingency table in terms of a correlation matrix involving r - 1 row and c - 1 column dummy predictors; (b) how to compute chi-square from canonical correlations solved from this matrix; (c) how to compute loadings for the omitted row and column variables; and (d) the possible interpretive advantage of describing canonical relationships that comprise chi-square, together with some examples. The proposed procedures integrate chi-square analysis of contingency tables with general correlational theory and serve as an introduction to some recent methods of analysis more widely known by sociologists.     

Adolescent socialization and use of licit and illicit substances: Impact on adult health

Abstract

This study examined the impact of adolescent substance use on young adult health. Longitudinal data from 825 participants were assessed when the participants were junior high school and high school students (1969-1973) and again in 1981. Latent variable models were used to determine what effect adolescent drug use had on later health. General substance use, which included tobacco, alcohol, stimulants, sedatives, and other hard drugs, had a small effect on adult health problems associated with substance use, and also predicted accidents related to substance use. In addition, the specific use of tobacco and cannabis in adolescence predicted later respiratory problems, while cigarette smoking during adolescence also predicted decreased physical hardiness. Lower adolescent socialization predicted post high school accidents (automobile and other) serious enough to require medical attention, and predicted increased psychosomatic and seizure symptoms, as well as general psychiatric distress. Implications of these results for the successful prevention or intervention of drug use are discussed. In addition to these results, gender differences are also examined.     

Leadership and Coping Among Air Force Officers

The current study explored the relationship between coping and leadership in a military sample. Data were collected from Air Force officers attending a 6-week professional military education course focusing on leadership development. Correlation analyses illustrate that leadership styles are associated with different styles of coping. Hierarchical regression further demonstrates that transformational leaders use more positive reinterpretation and problem-focused coping strategies and less emotion-focused coping strategies. Transactional leaders utilize more problem-focused coping strategies. Results also demonstrated mixed results on the relationship between transformational leadership and positive reinterpretation.     

Understanding the dynamics of correct and error responses in free recall: Evidence from externalized free recall

The dynamics of correct and error responses in a variant of delayed free recall were examined in the present study. In the externalized free recall paradigm, participants were presented with lists of words and were instructed to subsequently recall not only the words that they could remember from the most recently presented list, but also any other words that came to mind during the recall period. Externalized free recall is useful for elucidating both sampling and postretrieval editing processes, thereby yielding more accurate estimates of the total number of error responses, which are typically sampled and subsequently edited during free recall. The results indicated that the participants generally sampled correct items early in the recall period and then transitioned to sampling more erroneous responses. Furthermore, the participants generally terminated their search after sampling too many errors. An examination of editing processes suggested that the participants were quite good at identifying errors, but this varied systematically on the basis of a number of factors. The results from the present study are framed in terms of generate-edit models of free recall.     

Confirmatory Factor Analysis of Warr,Cook, and Wall's (1979) Job Satisfaction Scale

Warr, Cook, and Wall's Job Satisfaction Scale (JSS) is a widely used measure of job satisfaction in industrial/organisational (I/O) psychology research and practice. However, the factor structure has not been adequately explored, with two‐factor and three‐factor solutions previously proposed. This study tested the factor structure of the JSS using robust analysis methods on data gathered from a convenience sample of 381 (females = 264, males = 116) Australian employees. Confirmatory factor analyses supported a hierarchical three‐factor model of job satisfaction in terms of model adequacy coefficients; however, the three factors were highly correlated, thereby rendering a multifactorial approach to the JSS untenable. The results support the continued use of an overall score of job satisfaction when using this measure in I/O psychology research and practice. Further testing of the structure is recommended within a range of employment sectors, as the assumed multifactorial structure of the JSS common in the literature was not supported by the current study.     

Variation in working memory capacity and intrusions: Differences in generation or editing?

The current study explored the reason for the relation between individual differences in working memory capacity (WMC) and intrusions in free recall. High and low WMC individuals were tested in standard delayed free recall and externalised free recall in which participants recalled everything that came to mind. Additionally, in externalised free recall participants were instructed to press a key for each item that they knew was an intrusion. In delayed free recall, low WMC individuals recalled fewer correct items and more previous list and extralist intrusions than high WMC individuals. In externalised free recall, differences only arose in previous list intrusions. Furthermore, in externalised free recall it was found that low WMC were less likely to identify both types of intrusions than high WMC individuals. It is argued that the reason low WMC individuals recall more intrusions than high WMC in free recall is due to differences in both generation and editing abilities.