THE CONTROL OF BIAS IN RATINGS: A THEORY OF RATING

Based on several years of research and a careful analysis of the rating process Wherry developed a theory of rating. An accurate rating is seen as being a function of three major components: Performance of the ratee, observation of that performance by the rater, and the recall of those observations by the rater. Cast in a mold of classical psychometric theory each of these components is seen as consisting of a systematic portion and a random portion. The systematic portion of each component is further broken down. The performance of the ratee is a combination of true ability or aptitude for the job and the influence of the environment. What the rater observes is a function the performance of the ratee and bias of observation and what the rater recalls is a result of those observations combined with a bias of recall. The development of the theory of rating unfolds by defining the various factors that affect each of these components in a series of linear equations. Various theorems and corollaries are proposed which should lead to a maximization of the true ability component of the ratee and minimize environmental influence and the bias and error components. The theorems and corollaries suggest testable hypotheses for the researcher in performance evaluation.     

Task-related functional connectivity of the caudate mediates the association between trait mindfulness and implicit learning in older adults

Accumulating evidence shows a positive relationship between mindfulness and explicit cognitive functioning, i.e., that which occurs with conscious intent and awareness. However, recent evidence suggests that there may be a negative relationship between mindfulness and implicit types of learning, or those that occur without conscious awareness or intent. Here we examined the neural mechanisms underlying the recently reported negative relationship between dispositional mindfulness and implicit probabilistic sequence learning in both younger and older adults. We tested the hypothesis that the relationship is mediated by communication, or functional connectivity, of brain regions once traditionally considered to be central to dissociable learning systems: the caudate, medial temporal lobe (MTL), and prefrontal cortex (PFC). We first replicated the negative relationship between mindfulness and implicit learning in a sample of healthy older adults (60–90 years old) who completed three event-related runs of an implicit sequence learning task. Then, using a seed-based connectivity approach, we identified task-related connectivity associated with individual differences in both learning and mindfulness. The main finding was that caudate-MTL connectivity (bilaterally) was positively correlated with learning and negatively correlated with mindfulness. Further, the strength of task-related connectivity between these regions mediated the negative relationship between mindfulness and learning. This pattern of results was limited to the older adults. Thus, at least in healthy older adults, the functional communication between two interactive learning-relevant systems can account for the relationship between mindfulness and implicit probabilistic sequence learning.     

An evaluation of the agreement between the conservative dual‐criterion method and expert visual analysis

The conservative dual‐criterion (CDC) method was developed to standardize the analysis of single‐subject experimental designs data, but to date its accuracy has been evaluated only by comparing results to the statistical parameters of graphs. Our study investigated agreement between expert visual analysts and the CDC method on 66 AB tiers from published multiple baseline graphs. We found strong agreement between the two methods for certain types of graphs and discuss implications of the findings and areas for future research.     

Postural Asymmetries in Response to Holding Evenly and Unevenly Distributed Loads During Self-Selected Stance

The authors examined postural asymmetries during quiet stance and while holding evenly or unevenly distributed loads. Right-hand dominant subjects preferentially loaded their right lower limb when holding no load or a load evenly distributed in both hands, but no differences in center of pressure (CoP) were observed between the left and right limbs. However, longer CoP displacement was observed under the preferentially loaded limb, which may reflect a functional asymmetry that allows quick movement of one limb in response to a potential perturbation. When a load was held only in the nondominant hand, sample entropy decreased in the left (loaded) limb but increased in the right (unloaded) limb, suggesting the unloaded foot compensated for a loss of control flexibility in the loaded foot.     

A WORKER MOTIVATION SCALE

A 70 item questionnaire was constructed using the rationale of several current value/expectancy theories of motivation and the results of two prior factor analyses of motivation items. It was completed anonymously by 240 employed adults in 35 organizations and the resulting factor analysis yielded a hierarchical structure of motivation and eight reliable subscales. Direct and indirect criterion measures also obtained via the questionnaire and covering job characteristics/components; satisfaction (need) levels for n ach, n affil, n power ; the four elements of Heider's attribution theory of motivation; and salary, education and job classification were used to validate the subscales. Support for the criteria was found and promising validities were indicated. Lastly, personal, job and organizational variables were included with the motivation subscales and criteria in a subsequent factor analysis to examine moderator effects of the obtained validities. Results are discussed in terms of motivation theories, validities, moderator effects in study designs, and future use of the questionnaire by other researchers with business-industrial samples.     

Semantic effects in naming perceptual identification but not in delayed naming: implications for models and tasks

Previous research has demonstrated that the subjective danger and usefulness of words affect lexical decision times. Usually, an interaction is found: Increasing danger predicts faster reaction times (RTs) for words low on usefulness, but increasing danger predicts slower RTs for words high on usefulness. The authors show the same interaction with immediate auditory naming. The interaction disappeared with a delayed auditory naming control experiment, suggesting that it has a perceptual basis. In an attempt to separate input (signal to ear) from output (brain to muscle) processes in word recognition, the authors ran 2 auditory perceptual identification experiments. The interaction was again significant, but performance was best for words high on both danger and usefulness. This suggests that initial demonstrations of the interaction were reflecting an output approach/withdraw response conflict induced by stimuli that are both dangerous and useful. The interaction cannot be characterized as a tradeoff of speed versus accuracy.     

Autoeroticism,sexual satisfaction,and sexual adjustment among university females: Past and current patterns

A review of the research literature reveals a general paucity of rigorous scientific analyses of masturbatory behavior in adult females. The availability of a data base from a pilot study concerned with self‐perceptions of the orgasmic response during masturbation and sexual intercourse has provided the opportunity to investigate the role of masturbation in the sexual repertoire of university female students. This data base also permitted an assessment of what differences, if any, exist among those respondents who are currently masturbating, have masturbated but not currently masturbating, and have never masturbated.

Questionnaire data were obtained from 512 never‐married, female university students enrolled in lower and upper division courses in anthropology, biology, psychology, and sociology. Respondents in the currently masturbating group were more likely to have experienced their first orgasm via masturbation, to have had greater success in achieving orgasm via masturbation, and to enjoy masturbating alone more when contrasted with the not currently masturbating group. Other findings suggest that masturbating to orgasm serves as an enhancement and/or supplement to sexual intercourse. The currently masturbating respondents were more likely to have experienced sexual intercourse and those who had experienced sexual intercourse reported a greater number of sex partners than those respondents in the never masturbated group. Finally, no statistically significant differences were found in sexual adjustment, using self‐evaluations of physiological satisfaction and psychological satisfaction, between the three respondent groups.