The Relaxation Inventory: self-report scales of relaxation training effects

The development of a self-report measure to assess the effects of relaxation training was examined. A rigorous statistical method of scale construction consisting of a modification of the scale discrimination technique was employed, resulting in a 45-item questionnaire representing three orthogonally derived scales. The three scales, Physiological Tension, Physical Assessment, and Cognitive Tension, demonstrated adequate internal consistency with KR20 reliability coefficients of .89, .95, and .81, respectively. In a second study of predictive validity, 40 individuals were randomly assigned to one of four conditions: relaxation training, tension inducement, pre-postcontrol, or postcontrol. Univariate analysis of variance indicated significant findings for each of the three dimensions of the inventory. The Physiological Tension Scale detected significant increases in tension following tension inducement, whereas the Physical Assessment Scale and Cognitive Tension Scale detected increases in relaxation following relaxation training. Recommendations were made for future research on the inventory.     

Material Implication and General Indicative Conditionals

This paper falls into two parts. In the first part, I argue that consideration of general indicative conditionals, e.g., sentences like If a donkey brays it is beaten , provides a powerful argument that a pure material implication analysis of indicative if p, q is correct. In the second part I argue, opposing writers like Jackson, that a Gricean style theory of pragmatics can explain the manifest assertability conditions of if p, q in terms of its conventional content – assumed to be merely ( p ⊃ q ) – and the conversational implicature contents which utterance of if p, q may gain in certain contexts. I also defend the pragmatic approach against a recent objection by Edgington that appeal to pragmatics cannot explain what we are inclined to say about the believability conditions, as opposed to the assertability conditions, of indicative if p, q.     

Working memory in chess

Three experiments investigated the role of working memory in various aspects of thinking in chess. Experiment 1 examined the immediate memory for briefly presented chess positions from master games in players from a wide range of abilities, following the imposition of various secondary tasks designed to block separate components of working memory. Suppression of the articulatory loop (by preventing subvocal rehearsal) had no effect on measures of recall, whereas blocking the visuospatial sketchpad (by manipulation of a keypad) and blocking the central executive (by random letter generation) had equivalent disruptive effects, in comparison with a control condition. Experiment 2 investigated the effects of similar secondary tasks on the solution (i.e., move selection) of tactical chess positions, and a similar pattern was found, except that blocking the central executive was much more disruptive than in Experiment 1. Experiment 3 compared performance on two types of primary task, one concerned with solving chess positions as in Experiment 2, and the other a sentence-rearrangement task. The secondary tasks in each case were both designed to block the central executive, but one was verbal (vocal generation of random numbers), while the other was spatial in nature (random generation of keypresses). Performance of the spatial secondary task was affected to a greater extent by the chess primary task than by the verbal primary task, whereas there were no differential effects on these secondary tasks by the verbal primary task. In none of the three experiments were there any differential effects between weak and strong players. These results are interpreted in the context of the workingmemory model and previous theories of the nature of cognition in chess.     

COLOR PERCEPTION REQUIREMENTS OF 4,000 JOBS

Tabulation of the color discrimination requisites of a representative sample of 4,000 jobs revealed that the great majority of jobs require little or no color perception aptitude. The 2 percent of jobs requiring above-average color discrimination were listed by Dictionary of Occupational Titles classifications for the use of counselors in the guidance of clients with defective color vision.     

A Meta-model of Access Control in a Fibred Security Language

The issue of representing access control requirements continues to demand significant attention. The focus of researchers has traditionally been on developing particular access control models and policy specification languages for particular applications. However, this approach has resulted in an unnecessary surfeit of models and languages. In contrast, we describe a general access control model and a logic-based specification language from which both existing and novel access control models may be derived as particular cases and from which several approaches can be developed for domain-specific applications. We will argue that our general framework has a number of specific attractions and an implication of our work is to encourage a methodological shift from a study of the particulars of access control to its generalities.     

Differences in career maturity among adjudicated and nonadjudicated male students with and without disabilities

The authors investigated the level of career maturity of nonadjudicated high school students without disabilities and 3 groups of adjudicated high school students: those without disabilities, those with learning disabilities, and those with emotional disturbance. Also investigated was the relationship between career maturity and behavioral functioning, using the Behavior Assessment System for Children‐Self‐Report of Personality (BASC‐SRP; C. R. Reynolds & R. W. Kamphaus, 1992). No significant differences existed between nonadjudicated and adjudicated students without disabilities. Adjudicated students with emotional disabilities and learning disabilities scored significantly lower than nonadjudicated high school students without disabilities on the overall measure of career maturity. Career maturity was found to be significantly but only moderately related to 8 behavioral domains on the BASC‐SRP.