Correlation between Changes in Stress-Induced Corticosterone Secretion and GR mRNA Levels

The current study was conducted to determine the potential relationship between stress-induced corticosterone secretion and corticosteroid receptor mRNA levels after 5 days of intermittent stress. In particular, we were interested in the rate at which animals terminate a stress response, and how this termination may be altered by repeated stress. Adult male Sprague-Dawley rats were subjected to either 5 days of restraint stress or 5 days of an unpredictable stress paradigm. Restraint-stress induced corticosterone secretion was measured on Days 1 and 5 in both groups, and animals were killed on Day 6. Glucocorticoid receptor (GR), and mineralocorticoid (MR) mRNA levels were determined using in-situ hybridization techniques. Five days of restraint stress caused an habituation of the plasma corticosterone response to stress measured 60 and 90 min post-stress initiation; this pattern of corticosterone secretion was not observed in the animals subjected to unpredictable stress. Five days of either stress paradigm did not alter MR mRNA levels measured within the hippocampus or GR mRNA levels within the hippocampus or the medial parvocellular division of the paraventricular nucleus of the hypothalamus (mpPVN). However, an individual's GR mRNA levels measured within the CA1/2 region of the hippocampus and the mpPVN were significantly correlated with the degree of habituation of the corticosterone response to stress measured on Day 5. This suggests that an increase in the rate of termination of the stress response and levels of GR within the hippocampus and mpPVN may be functionally related.     

Personality characteristics of counselors rated as effective or ineffective

A study of 320 counselors in four states revealed substantial and significant correlations between tested personality characteristics and rated job performances. The Vocational Preference Inventory (VPI) was used to discriminate counselors rated as highly effective, as average in effectiveness, or as ineffective on a 28-point Satisfaction with Performance Blank (SWPB). Effectiveness ratings were completed for each counselor by three supervisors. Rated counselor effectiveness was positively correlated with the Social and Artistic codes of the VPI and negatively correlated with Realistic and Conventional scores. A regression formula with a cross-validation procedure was used to explain the variance of the supervisory ratings. Employment level—elementary, middle, or high school—was not related to other factors studied. Sex, age, certification, and degree status were of no significance in predicting rated effectiveness. Highly rated counselors had a group Holland code of Social-Artistic-Investigative (SAI) whereas counselors rated as ineffective had a Realistic-Coventional-Enterprising (RCE) group code. Individual variations were uncommon.     

Expressed vocational choices and later employment compared with Vocational Preference Inventory and Kuder Preference Record-Vocational scores

Expressed vocational choices were more predictive of employment status four years after high school graduation for males than were scores on either the Vocational Preference Inventory or the Kuder Preference Record-Vocational. The Vocational Preference Inventory and expressed choices were about equally efficient in predicting future employment for females. The Kuder Preference Record-Vocational was far less predictive of future employment than the other measures employed in the study. Predictions for males were more accurate than for females on all measures.