Eliminating nail-biting by the habit reversal procedure

Fingernail-biting is prevalent among children and adults alike. About 43% of children bite their nails during the puberty ages (Wechsler, 1931); 25% of college students are nail-biters (Coleman and McCalley, 1948), and 10% of adults bite their nails (Pennington, 1945).A variety of treatments including negative practice, operant procedures and psychotherapy have been used in treating nail-biting but no single treatment has been generally effective in eliminating nail-biting. Smith (1957) using negative practice reported that 21 of 57 (39%) of his nail-biting clients were cured. 9 improved and 27 (47%) were unimproved. Bucher (1968) reported that 13 of 20 (65%) college students stopped nail-biting by using a self-administered operant shock procedure. However, he reported many relapses after the withdrawal of shock for nail-biting. No evaluation of psychoanalytic treatment for nail-biting appears to have been made.     

The Premack principle in human experimental and applied settings

Studies claiming support for the Premack Principle in human experimental and applied settings are reviewed in terms of the standard test conditions associated with the Principle and in terms of the Principle's conceptual constrains. Little definitive evidence was found to support the claim that a high probability response will reinforce a lower probability response, nor was the converse contention supported, that a low probability response will act as a punisher for a high probability response. More importantly, among the reports reviewed there was no evidence for the reversibility of the reinforcement relationship.     

The abstraction of visual prototypes by children

The present studies demonstrated that children as young as second graders could form prototypical representations from a set of highly similar stimuli. The prototype-plus-transformation model of this performance (Franks & Bransford, 1971) was contrasted with an attribute-frequency model (Neumann, 1974). Results supported the latter model when trigram stimuli were used to test differential predictions from the models.     

The effect of pictorial detail and elaboration on children's retention.

In a visual memory task, two degrees of stimulus detail were compared to test Reese's hypothesis that stimulus detail would facilitate retention of paired associates for young children. Stimuli were presented in an elaborated or nonelaborated fashion so that the effect of detail on retention of both types of materials could be investigated. Four and 5 year-old children were included to assess a reported developmental trend that elaboration facilitates retention for older children but fails to do so for younger children. Both age groups performed equally well, and detail had no effect. Elaboration aided retention significantly. A second study, in which difficulty of the task was increased, yielded equivalent results. The constraints on performance by recall and recognition tasks were discussed.     

Spatial representation by blind and sighted children

Spatial representation by 72 blind and blindfolded sighted children between the ages of 6 and 11 was tested in two experiments by mental rotation of a raised line under conditions of clockwise varied directions.Experiment 1 showed that the two groups were well matched on tactual recognition and scored equally badly on matching displays to their own mentally rotated position.Experiment 2 found the sighted superior in recall tests. There was a highly significant interaction between sighted status and degree of rotation. Degree of rotation affected only the blind. Their scores were significantly lower for rotating to oblique and to the far orthogonal directions than to near orthogonal test positions. On near orthogonals the blind did not differ from the sighted.Age was a main effect, but it did not interact with any other variable. Older blind children whose visual experience dated from before the age of 6 were superior to congenitally blind subjects, but not differentially more so on oblique directions.The results were discussed in relation to hypotheses about the nature of spatial representation and strategies by children whose prior experience derived from vision or from touch and movement.     

Vocational maturity of Arab and American high school students

The vocational maturity of Arab and American ninth- and eleventh-grade students were compared. Arab students were found to have lower maturity scores than American students. Eleventh graders of both nationalities were more vocationally mature than ninth graders. The possibility that the overall difference found between Arab and American students can be attributed to cultural differences was supported by the response trend of discriminating items as revealed by an item analysis.     

Traditional attitudes and teacher consistency in producing student learning gains in the early elementary grades

Questionnaire responses of second- and third-grade teachers specially selected because of their relatively high consistency in producing student learning gains on standardized achievement tests (N =30) were compared with responses of other teachers working in the same school system at the same grade levels (N = 38). Due to sample selection procedures, the highly consistent teachers were older and averaged more years of teaching experience than the teachers in the comparison group. In order to see whether the consistent teachers differed in any other ways from the teachers in the comparison group, the teachers in each group were administered a 495-item questionnaire. Group difference analyses revealed 57 items showing differences beyond the .05 level of significance, when only about 25 would have been expected by chance. For the most part, the items showing group differences did not form interpretable patterns. However, a subset of 10 items emerged from a factor analysis to form a traditionalism factor. Further analyses revealed that the highly consistent teachers were more traditional in their attitudes and beliefs than the teachers in the comparison group, and that this difference was not related to teacher age or years of experience. Thus, traditionalism in beliefs and attitudes was related to consistency in relative success in producing student learning gains. Possible reasons for this puzzling finding are discussed.     

Comparative assessment of a coping model for school adolescents

Four brief, interpersonal coping courses were conducted in a junior high school setting for early adolescent students who volunteered for the experience. Two of the classes (N=24) consisted of students who regularly utilized school guidance personnel; the remaining two classes (N=19) consisted of adolescents from the general school population. Course objectives included higher self-esteem and increased ability to perceive, interpret, and express nonverbal communication and feeling. Session tape recordings provided verbal data for analysis by the Hill Interaction Matrix (HIM) procedure. Results showed that the intervention had significant impact on students' patterns of interaction: interactions were fewer, but longer; conventional interactions decreased, while speculative ones increased; and personal and relationship content increased. Generally, the two class types exhibited similar patterns and changes, although some specific differences were detected. Social class background, stressful life events, and the intensity of the problems experienced by the two types of student were postulated as the sources of this variability. When coupled with ancillary postcourse data, these results support the conclusion that students' interpersonal coping skills were improved by the experience.