Dichotic listening ear asymmetry: Patterns of longitudinal development

Dichotic listening research with children has continued to be prevalent although numerous authors have described both theoretical and methodological limitations with traditional dichotic listening free-recall paradigms. The present research adds to this growing skepticism by reanalyzing two major longitudinal studies of children's ear asymmetries. These two studies, based in different countries (United States, Holland), utilized highly similar paradigms (free-recall digits), subjects (males), and age levels (kindergarten and second and fifth grade). The questions of ear advantage development, patterns of ear advantages, and the relationship between dichotic listening performance and reading skills are addressed from the multiple statistical methodologies represented in the literature. From these analyses, support for all of the major hypotheses regarding the developmental patterns of dichotic listening performances could be obtained from the same data samples. The use of traditional free-recall dichotic listening paradigms are not recommended for use with children. The implications for future research are discussed.     

Motivation to manage among women: Studies of business managers and educational administrators

Studies were undertaken in a department store and in four school districts to determine if managerial motivation is related to management success indexes and whether female managers have less managerial motivation than males. The measure of managerial motivation used was the Miner Sentence Completion Scale. Managerial motivation did prove to be significantly related to the success of female managers, but no consistent differences in the managerial motivation of male and female managers were found. The results are interpreted in terms of their implications for the vocational guidance of females and for research in the area of managerial talent supplies.     

Motivation to manage among women: Studies of college students

Studies were conducted with samples of students from four different universities to determine if male-female differences in motivation to manage existed. Although differences were not found among students majoring in the field of education, females in business administration and the liberal arts did prove to have lower managerial motivation scores than the comparable male samples. These findings are discussed in terms of their relationships to sex discrimination, prospective managerial talent shortages and the vocational guidance of female college students.     

Operant and Pavlovian factors in cross-response transfer of inhibitory stimulus control

Experiment 1 used a within-response procedure to compare inhibitory stimulus control of the extinction cue in multiple variable interval-extinction (mult VI EXT) and the variable time cue in multiple variable interval-variable time (mult VI VT). Experiment 2A made the same comparison using a crossresponse procedure. In addition, Experiment 2A also tested the extinction cue in multiple variable time-extinction (mult VT EXT), and Experiment 2B tested the variable time cue in mult VT EXT. Unlike the mult VI EXT and mult VI VT conditions, the mult VT EXT condition was administered in the absence of a response manipulandum. The main findings of the present study were: (1) cross-response suppression by the variable time cue in mult VI VT; (2) greater response suppression by the extinction cue in mult VI EXT than by either the variable time cue in mult VI VT or the extinction cue in mult VT EXT; and (3) response facilitation by the variable time cue in mult VT EXT. These findings indicate that inhibitory stimulus control based on an operant source (i.e., absence of an R-S contingency) does transfer across responses, and that such transfer cannot be explained in terms of competing responses. These findings also indicate that operant and Pavlovian sources of stimulus control summate algebraically to determine the inhibitory strength of the extinction cue in mult VI EXT. Finally, the third finding is not consistent with notions that emphasize the importance of location and localization of cues explicitly paired with positive events.     

Spatial problem solving by rats: Exploration and cognitive maps

Two experiments were performed in an attempt to examine the contribution of the exploratory experience to performance on Maier's 3-table spatial problem-solving task. In the first experiment, the runway configurations were altered between exploration and testing. It was found that following an initial impairment animals exposed to the altered runway configurations could perform as well as animals not confronted with an altered runway configuration on the test trial. In the second experiment, animals were allowed to explore only elements of the problem space. Exploration of either the runways only or the tables only led to unsuccessful performance on the 3-table task. The results of both experiments were related to current theory of cognitive mapping.     

Structural ambiguity in serial pattern learning

Four experiments on serial anticipation learning of lights by college students show that (a) the operations of transposing and taking the mirror image are used, (b) temporal inversion is not used, (c) a sequence made of two contrasting halves may be as easy to learn as a sequence having a single homogeneous hierarchical structure. Data revealed intrasequence confusion errors made by importing an operation from one part of the sequence to another. In homogeneous sequences, subjects appear to lose track of where they are in a sequence, and therefore repeat an operation already performed. The evidence supports the idea of an hierarchical cognitive structure, but shows that learning is not a simple function of that structure. Errors and difficulties arise from structural ambiguities, substrings of events that can be reconciled with more than one possible cognitive structure.     

Language and the young stutterer: A new look at old theories and findings

The major theories and research approaches as to the etiology and development of stuttering are reviewed from a historical perspective. Findings are drawn from different sources indicating that language deficits are an initial contributing factor and a continuing component of this disorder. Those subsets of children which constitute high-risk groups are identified. It is suggested that researchers begin investigating the underlying organic bases of stuttering and its relationship to stages of language development. Finally, clinicians are encouraged to employ a therapy program that is concerned with all areas of language, rather than emphasizing treating only the symptoms of stuttering behavior.     

Misconceptions revisited: A final comment

Although Songer-Nock's reanalysis of her data is consistent with our earlie comments, her reply indicates that some of her misconceptions persist.     

Children's cultural values and parental child rearing strategies

Researchers during the past 40 years have infrequently disentangled the relationship between young black children's personal identity and group identity, generally treating them in an undifferentiated manner. Investigators suggest that impersonal agents determine young black children's white-biased cultural values, usually ignoring the influence of parental child-rearing strategies. Findings from three studies in the Midwest, North, and South document that preschool children show consistently Eurocentric (white-biased) choice behavior; the trend for most attitudes and preferences changes to an Afrocentric orientation during middle childhood. Parental interviews obtained from a subsample of Southern parents offer alternative interpretations of these choice patterns; values transmitted (e.g., teaching children about civil rights and racial discrimination) predict children's Afrocentric racial attitudes and preferences.     

Rapid educational rehabilitation for prison inmates

One of the major goals of prisons has been the educational rehabilitation of inmates. Studies have shown that predelinquents as well as delinquents could be motivated to achieve in academic areas through the use of an incentive system. The present study attempted to extend the behavioral yield of such a system with prison inmates. The academic performance of two inmates in math and English were compared when two levels of incentives were made contingent on that performance. The results showed that the two inmates passed academic tests as much as nine times faster under an enriched schedule of incentives than under a standard one. This increase in rate of performance was translated into actual academic achievement as one of the inmates passed 9th through 12th grade algebra in only 14 days. A standardized test confirmed this academic advancement for both inmates. These high rates of performance and academic achievement are even more dramatic in view of the fact that five months prior to this procedure, both inmates had been tested as being below average in intelligence.     

Responses of normal and learning disabled children as a function of the stopwatch in the matching familiar figures testing situation

To ascertain whether normal and hyperactive learning disabled children differ in their responses to Kagan's Matching Familiar Figures Test (MFF) as a function of a temporal cue, the stopwatch used in the testing situation, 16 learning disabled and 15 normal 8- and 9-year-old boys were compared. A counterbalanced design, in which each child was administered one-half of the test with a stopwatch (standard administration procedure) and the other one-half of the test without a stopwatch (No-Stopwatch procedure), was used. For the normal children, the MFF latency scores in the two conditions were not correlated, indicating that the stopwatch influenced their performance. For the learning disabled children, however, the MFF latency scores in the two conditions were correlated. A significant difference between the two correlation coefficients indicated that the normal and learning disabled children responded in a different manner to the temporal cue. On the MFF error measure, the correlation between the scores obtained in the two conditions of test administration was significant for the normal children, but not for the learning disabled children. A significant difference between these correlation coefficients again indicated differential responding to the temporal cue by the two groups.     

Developmental inter-relationships among concrete operational tasks: An investigation of Piaget's stage concept

One hundred and one primary school children were tested on eight concrete operational tasks. Each child's performance on each task was classified as either preoperational, transitional, or fully operational. Cross-classification tables were constructed showing the joint classification of children's performance on all possible pairs of the eight tasks. Two models of intertask relations, Wohlwill's (The study of behavioral development. New York: Academic Press, 1973) divergent-decalage and reciprocal-interaction patterns, were evaluated for their fit to the cross-classification data using χ² goodness-of-fit procedures. Instances of both these patterns were identified in the data. The findings give some support to Flavell and Wohlwill's modification of Piaget's stage concept, in which individual groupings (e.g., seriation) are the structural basis of the interrelationships among concrete operational tasks. Tasks based on the same rule showed a degree of developmental interdependence (reciprocal-interaction patterns), while tasks based on different rules appeared to develop independently (divergent-decalage patterns). However, only one-half of the cross-classification tables were adequately described by either the divergent-decalage or the reciprocal-interaction patterns.     

Acquisition and transfer of conceptual learning by normals and retardates: the effects of modeling, verbal cues, and reinforcement

The present study compared the effects of modeling, verbal cues, and reinforcement on conceptual learning of normals and retardates. Performance on both original learning tasks and a transfer task was examined. The results indicated that, relative to a control group, modeling alone, modeling plus verbal cues, and exposure to the completed task plus verbal cues facilitated original conceptual learning. Furthermore, modeling plus verbal cues was more effective in reducing errors than modeling alone. Original learning was not affected by tangible reinforcement, social reinforcement, or IQ level. No significant effects were found for a transfer task.     

Some neurolinguistic implications of prearticulatory editing in production

This paper argues that a complete model of language production must include a prearticulatory editing component. The function of this component is to monitor planned speech for deviations from the speaker's intention and repair any deviations that are found. It is claimed that adding such an editing component onto a production model fundamentally changes any account of aphasic symptoms using that model. As a case in point it is shown that E. M. Saffran's (1982, British Journal of Psychology, 73, 317-337) argument that agrammatic Broca's aphasia involves a deficit at the functional level of M. F. Garrett's (1975, in G. H. Bower (Ed.). The psychology of learning and motivation, New York: Academic Press) production model is no longer sound when prearticulatory editing processes are considered.     

Locus of control and the learning of an artificial language

An experiment was conducted to explore the cognitive processes associated with locus of control beliefs. Internal and external subjects were instructed to remember as much as they can from an array of 21 letter strings generated from a finite state grammar. Although internals and externals did not significantly differ in their ability to recall these items, internals were better able to discriminate grammaticality and nongrammaticality in a new set of letter strings. Thus, although both groups attended to the exemplars, internals extracted more invariance and hence learned more about the underlying structure than externals. These results were discussed in relation to those of Wolk and DuCette (1974) on I-E and incidental learning.     

Behavioral consequences of song learning: Discrimination of song types by male white-crowned sparrows

The functional significance of learned population differences in male song in the white-crowned sparrow was explored in natural populations using playback tests. Laboratory results have shown that learning of the population-specific song seems to take place in early life and is strongly dependent upon the nature of the auditory experience at that time. However, the varied results of recent studies make it difficult to reach a confident conclusion about the ecological functions of song learning. The present research took advantage of naturally occurring variation in the differences between songs of adjacent populations to determine a function relating degree of difference in song to intensity of territorial singing elicited. Applying a typological evaluation of syllable structure to the four segments of the song allowed a crude quantitative ranking of the differences between local songs and playback stimuli. These results, together with those of other studies, suggest a unimodal aggressive response function of males to songs of other males. A maximum response to songs slightly different from the local song environment suggests that male exclusion based upon acquired song components may contribute to the maintenance of discrete and stable song dialects.