The virtues of the SDS and its associated typology: A second response to Prediger and Hanson

The author reviews the evidence for the beneficial effects of the Self-Directed Search (SDS), indicates that Hanson and Prediger have misinterpreted the theory, that their evidence is misleading, and that other evidence indicates that males and females of the same type are similar. The virtues of raw scores are summarized. The author recalls some methodological adventures and outlines where we are now in this controversy about the measurement of interests for special groups.     

Cognitive correlates of map-reading ability

The performance of ROTC students on the Relief Format Assessment Test (RFAT) was regressed on psychometric variables and a measure of hemisphericity. Contrary to expectation, it was found that measures of visual-spatial ability and hemisphericity were not good predictors of map-reading ability, whereas the Extended Range Vocabulary and Mathematical Aptitude Tests were significant predictors. Factor analysis of the RFAT indicated the existence of two factors, one tentatively associated with terrain analysis and the other with altitude estimation. Mathematical Aptitude along with Form Board predicted performance on the altitude estimation factor, whereas Extended Range Vocabulary along with Similarities and Institution predicted performance on the terrain analysis factor. These results suggest that at least for our subjects, the solution of map-reading problems is primarily dependent upon verbal-analytic and to a lesser extent upon visual-spatial ability.     

The effects of constant vs varied reinforcer presentation on responding by autistic children

The autistic child's characteristic lack of motivation can create considerable problems for educators. Since there is some evidence that stimulus variation may influence motivation, this study was designed to assess the differential effects of constant vs varied reinforcer presentation. Specifically, two questions were addressed: (1) Would there be any differences in the total number of responses emitted by autistic children when the reinforcer was held constant as opposed to varied; and (2) would there be any differences in the interresponse interval for constant vs varied reinforcer presentation? The results clearly demonstrated that the children in this investigation made significantly more and faster responses when the reinforcer presentation was varied as opposed to constant. The results are discussed in terms of the effects of stimulus variation on satiation and implications for teachers of autistic children.     

Linguistic analysis of a bilingual stutterer

The ultimate test of the adequacy of linguistic models of fluency breakdown is the degree to which they may account for patterns of dysfluency in the speech of a stutterer who is fluent in more than one language. We present the case of an adult bilingual stutterer (Spanish-English), whose spontaneous language in both Spanish and English was structurally analyzed to assess the relationships of phonological and syntactic structure to the frequency and location of fluency breakdown. Our findings suggest that syntax is probably a greater determinant of stuttered moments than is phonology. Additionally, similarities and differences between English and Spanish sentence structure were associated with similarities and differences in the loci of dysfluencies across the two languages. The need for crosslinguistic research utilizing monolingual and bilingual speakers of languages other than English is emphasized.     

Age and outstanding occupational achievement: Lehman revisited

The findings of H. C. Lehman's (1953, Age and achievement, Princeton, NJ: Princeton Univ. Press) study of age and outstanding occupational achievement were reviewed along with the explanations which have been put forth to account for the finding that major contributions are most likely to occur in young adulthood. Subsequently, an alternative explanation was proposed based on the central developmental tasks facing individuals in young adulthood and middle age. More specifically, it is argued, in accordance with N. Haan (1981, in R. M. Lerner & N. A. Busch-Rossnagel (Eds.), Individuals as producers of their own development: A life span perspective, New York, Academic Press), that young adults employ an accommodating adaptive style, and that the cognitive and behavioral concomitants of this style may increase the likelihood of major contributions. It is also noted that the realistic, controlling adaptive style of the middle aged would tend to facilitate minor contributions. Finally, the broader literature was reviewed in relation to these hypotheses, and certain practical implications of this reinterpretation were laid out.     

Cross-sectional,longitudinal and composite longitudinal data on the Career Maturity Inventory Attitude Scale

Longitudinal data collection designs are frequently used in the study of developmental variables but typically yield patterns of results that are different from those obtained using cross-sectional designs. Recent research has focused on ways to clarify and reconcile the methodological distinctions between these two designs by utilizing alternative designs that incorporate features of both. This investigation compared the results obtained by the two traditional designs on the Career Maturity Inventory-Attitude Scale with the effects of an alternative design: constructing a composite longitudinal gradient. The two traditional methodologies yielded different results from each other for males, but not for females. However, the alternative design failed to eliminate the obtained differences for males, and introduced differences for females, casting doubt on the efficacy of the “solution.” The implications of these results for developmental research and career maturity were discussed.     

An analytical description of employment according to race,sex, prestige,and Holland type of work

The composition of employment was examined using 1970 census data for employed civilians, Holland's occupational typology, and a prestige scale. The present report extends earlier examinations of the labor force using these dimensions by studying the sex and race composition of types of work at several levels of prestige, and by examining the extent of government employment among men and women in different jobs. Results indicate areas where women and blacks are under- and over-represented. In addition, because of the association between type of work and prestige level, aspirations or interest in a type of work may have implications for the level of work that is available. Counseling and research implications of the results are discussed.     

Dishabituation and spontaneous recovery of the electrodermal orienting response: Effects of extraversion,impulsivity, sociability,and caffeine

The relationship between extraversion and psychophysiological indices of arousal is not yet fully understood. The present study attempted to further clarify this relationship by using caffeine to systematically manipulate arousal. Subjects pretested on the Eysenck Personality Inventory were given caffeine or a placebo, then underwent habituation, dishabituation, and spontaneous recovery of the electrodermal OR. Separate analyses examined the main and interactive effects of extraversion, impulsivity, and sociability with caffeine. Several tonic and phasic measures showed group reversal effects, with introverts having higher tonic levels and larger phasic responses under placebo conditions and extraverts having larger phasic responses and higher tonic levels under caffeine. Although both tonic and phasic responses were differentially affected, the group reversal effects occurred at different points in time on tonic than they did on phasic measures relative to the theoretical buildup of inhibition. The findings for impulsivity were quite consistent with those for extraversion, and both sets of results were generally supportive of the Eysenck hypothesis.     

Imagery and verbal encoding in left and right hemisphere damaged patients

Neuropsychological aspects of imaginal and verbal encoding in memory were explored in two forced-choice recognition memory experiments with patients suffering from left and right anterior cerebral hemisphere damage. In the first experiment stimulus type and rate of presentation were varied. Predictions of patient performance based on the hypothesis that left anterior hemisphere pathology impairs verbal memory coding and right anterior hemisphere pathology impairs imaginal coding were confirmed. In a second recognition memory experiment for pictures of common objects, system-specific (imaginal or verbal) interference and distractor effects were demonstrated by analyzing the effects of interpolated tasks and the nature of false-recognition errors.