Self-report measurement of type A behavior: toward refinement and improved prediction

Self-report measures of Type A personality receive wide research usage despite mounting evidence that they are poor predictors of coronary heart disease. It was proposed that the limited prediction results in part from the failure to restrict measurement to only those Type A characteristics that are demonstrably related to excessive stress. The first study in this article reports a factor analysis of all items on the Jenkins Activity Survey (JAS), the most popular Type A questionnaire, along with 25 stress symptoms. Self-ratings were obtained from both male and female college students. Only one stress-related factor emerged including 12 JAS items out of 44. These were relevant to (a) hard-driving and competitive, (b) time-urgent, and (c) hostile/irritated characteristics. Study 2 reports correlations of +.50 and +.43 between the stress-relevant JAS items and stress for new samples of female and male college students. Study 3 considers the broader personality correlates of scores on the stress-relevant Type A items and reports markedly different patterns for male and female college students. Predicted correlations were found on new samples between these personality correlates, considered as scales, and stress-relevant Type A scores and stress.     

“Aunt Grace can't have babies”

One of the most necessarily sensitive areas of pastoral care is dealing with perinatal death. This case study grows from a need for care providers to understand better the feelings of a mother in the loss of her baby. This particular exploration evolved from a taped interview with the writer's aunt (now in her seventies) and her dealings with the multiple losses she experienced over fifty years ago. Her conversation in the interview gives credibility to many coping skills that we endeavor to teach today and that she developed for herself out of a need to survive....it was as if the birds would never sing again.-Aunt Grace     

Criterion-related validity data for the child behavior checklist—Teacher''s report form

Criterion-related validity data for the Child Behavior Checklist—Teacher's Report Form are presented. These data were collected from a sample of elementary school boys. A total behavior problem score and individual factor scores were calculated from the checklist data and were related to indices of academic achievement and overall adjustment in the classroom. Significant correlations were established between the two sets of scores. The results were interpreted as supporting the criterion-related validity of the teacher-judgment measure and its use as a screening or diagnostic device in the school.     

A factor analytic study of manifest anxiety: a transsituational, transtemporal investigation

In this study, we investigated the factorial structure of the Manifest Anxiety Scale (MAS) among American, counseling graduate students (N = 227). The MAS was administered across transsituational and transtemporal conditions. The following four factors were yielded following orthogonal rotation: General Worries, Physiological Correlates of Anxiety, Distractibility, and Embarrassment. These four factors, however, explained less than one quarter of the common variance extracted. Following a comparison with previous factor analytic studies of the MAS, we discuss factors possibly contributing to the discrepant findings, with particular attention to the MAS's item content and psychometric properties and the nature of the population used.     

Once more on the equilibrium-point hypothesis (lambda model) for motor control

The equilibrium control hypothesis (lambda model) is considered with special reference to the following concepts: (a) the length-force invariant characteristic (IC) of the muscle together with central and reflex systems subserving its activity; (b) the tonic stretch reflex threshold (lambda) as an independent measure of central commands descending to alpha and gamma motoneurons; (c) the equilibrium point, defined in terms of lambda, IC and static load characteristics, which is associated with the notion that posture and movement are controlled by a single mechanism; and (d) the muscle activation area (a reformulation of the "size principle")--the area of kinematic and command variables in which a rank-ordered recruitment of motor units takes place. The model is used for the interpretation of various motor phenomena, particularly electromyographic patterns. The stretch reflex in the lambda model has no mechanism to follow-up a certain muscle length prescribed by central commands. Rather, its task is to bring the system to an equilibrium, load-dependent position. Another currently popular version defines the equilibrium point concept in terms of alpha motoneuron activity alone (the alpha model). Although the model imitates (as does the lambda model) spring-like properties of motor performance, it nevertheless is inconsistent with a substantial data base on intact motor control. An analysis of alpha models, including their treatment of motor performance in deafferented animals, reveals that they suffer from grave shortcomings. It is concluded that parameterization of the stretch reflex is a basis for intact motor control. Muscle deafferentation impairs this graceful mechanism though it does not remove the possibility of movement.     

A note on modulations and structuring of locomotion in children and adults

The aim of this study was to investigate the modulations of locomotion induced by a rhythmic cognitive task (counting one's steps). Subjects (6- and 8-year-olds and adults) were requested to walk freely, and then to walk while counting their steps. Here a decrease in cadence values was observed in children only, with quasi-total repercussions on velocity at the age of 6 only. The spatiotemporal structuring of locomotion described here is already present at 6 years of age and is not altered in the step-counting situation: strong links were observed between cadence and velocity, and between stride length and velocity, and weak links between cadence and stride length.     

Daily versus major life events as predictors of symptom frequency: a replication study

Predictions of physical symptomatology by daily life events and by major life events were compared, replicating and expanding work reported by DeLongis, Coyne, Dakof, Folkman, & Lazarus (1982). Analyses of daily, prospective data collected on 79 married men for 90 days demonstrated that daily, undesirable events were better predictors of symptom frequencies than either past, major life events or daily, desirable events. These results, similar to those found by DeLongis et al. (1982), were further explored by examining "healthy" subjects versus subjects with prior medical conditions. Undesirable daily events were a much stronger predictor of physical symptoms in the healthy group than in the prior medical conditions group.     

Influence of a 14-day regimen of electrical stimulation involving large portions of the cerebral mass on later habit acquisition in the rat

Four groups of rats, one of which served as a normal, nonoperated group, were used. The other three groups were operated and fitted with an electrode carrier of eight electrodes of varying lengths arranged in a 7.5 mm X 5 mm rectangle. About 10 or 12 days after surgery, the following groups of animals underwent a 14-day regimen wherein each animal spent 15 min in a deep, metal, electrically insulated cylinder: Group A, normal, nonoperated group, with no intervention; Group B, stimulated each day with 45 trains of rectangular biphasic pulses (3 trains per min) at the rate of 20 pulses per second (pps); Group C, the same but at the rate of 100 pps; Group D, the same but 180 pps. After a 48-hr fast and without benefit of shaping, each animal was placed for 60 min in a lever-pressing device and was rewarded with a pellet after each three to four presses. The resulting performance curves showed no improvement in pressing rate for Group A; marginal improvement for Group B; definite improvement for Group C; and the greatest improvement for Group D, the terminal rate being almost twice that of Group C.     

Sentencing Disparity: Perforce or Perchance?1

Important sources of variability in sentencing judgments are identified by decomposing these judgments in a Crime × Judge analysis of variance into a Crime main effect (representing consensus) and several forms of disparity. Two systematic forms of disparity are (1) the Judge main effect, reflecting differences in overall harshness or leniency of different judges; and (2) the Crime × Judge interaction, reflecting idiosyncracies—perhaps principled—in the way particular judges view particular crimes. A third unsystematic form of disparity is reflected in variations in how the same judge views the same crime/offender on different occasions, that is, unreliability. Data from an experiment in which state district judges made sentencing decisions about the same crime/offenders on two occasions are presented to illustrate application of the model and obtain disparity estimates for 13 crimes. Results reveal that for most of the crimes disparity can be attributed primarily to simple unreliability over occasions rather than principled disagreements among judges. Implications of these results and the importance of distinguishing different types of disparity are discussed.