Cognitive ability, expertise, and age differences in following air-traffic control instructions

Differences in cognitive ability and domain-specific expertise may help explain age differences in pilot performance. Pilots heard air-traffic controller messages and then executed them while "flying" in a simulator. Messages varied in length and speech rate. Age was associated with lower accuracy, but the expected Age x Message Difficulty interactions were not obtained. Expertise, as indexed by pilot ratings, was associated with higher accuracy; yet expertise did not reduce age differences in accuracy. The effect of age on communication task accuracy was largely explainable as an age-associated decrease in working memory span, which in turn was explainable as decreases in both speed and interference control. Results are discussed within frameworks of deliberate practice and cognitive mediation of age differences.     

Development and Initial Validation of the Child Routines Inventory

The importance of establishing predictable routines during childhood consistently has been emphasized in the popular parenting literature, despite a paucity of empirical evidence. The lack of research may be partially due to a lack of suitable instruments designed to measure children's routines. This study describes development and preliminary psychometric data in support of the Child Routines Inventory (CRI), an empirically derived, content-valid, parent-report measure of commonly occurring routines in school-aged children. Principal components analysis yielded a four-factor structure (composed of 36 items), accounting for 44.2% of the total variance. The CRI was found to have excellent internal consistency ( = .90), good test-retest reliability (r = .86), and preliminary evidence of construct validity, demonstrating a moderate relationship with measures of child behavior problems and family routines. These results suggest the CRI to be a promising new measure of child routines that would benefit from further validation studies.     

Potential roles of the medical ethicist in the clinical setting

The medical ethicist is a fairly recent addition to the clinical setting. The following four potential roles of the clinical ethicist are identified and discussed: consultant in difficult cases, educator of health care providers, counselor for health care providers and finally patient advocate to protect the interests of patients. While the various roles may sometimes overlap, the roles of educator and counselor are viewed as being more congruent with the education and training of medical ethicists than are the roles of consultant and patient advocate.     

Touching behaviors of winners and losers in swimming races

This study compared touching behaviors of swimmers who were winners and losers. The number and location of interpersonal touches given and received by winners and losers of swimming races were recorded. Winners gave and received significantly more touches than losers. Most touches were hands, back, or shoulders, confirming earlier findings for college men and women.     

Instructive feedback: Effects of number and type

We evaluated the effects of presenting two instructive feedback stimuli of the same and different types for each target behavior taught. Four elementary school students with mild mental retardation were taught to name photographs of places of interest in the local community using constant time delay and instructive feedback. Initially, the four students were taught one set of photographs with one instructive feedback stimulus (name of the street on which the place was located) for each target photograph. All students learned to name all photographs, and three learned to name the street on which the place was located. The three students who learned to name the street for the place in the photograph were then taught three sets of photographs. Each set included two instructive feedback stimuli for each target photograph: Set 2 had one street name and one activity that occurred in the place; Set 3 had two activities per photograph, and Set 4 had one street name and one activity. The three students learned to name the photographs, but only learned to name the activities and not the street names that were presented through instructive feedback. These finds are discussed in terms of the factors that may control acquisition of instructive feedback stimuli and the implications for practice and future research.