The developmental relationship between identity and equivalence conservation

Hooper's (1969a) finding that identity conservation develops prior to equivalence conservation was investigated using a more stringent within-subject design. Seventy-two kindergarten, first, and second graders were given three conservation tasks: (1) Identity, (2) Equivalence 1, in which the perceptual cues were comparable to those in Identity, and (3) Equivalence 2, the traditional Piagetian conservation task. Each task was administered under two levels of transformation. No significant differences in performance as a function of level of transformation, type of equivalence task, or sex of S were found, but first and second grade Ss performed better than kindergarten Ss. Eighty-six percent of the sample conserved in an all-or-none fashion, and 7 Ss (10%) passed equivalence while failing identity, thus contradicting the developmental priority of identity conservation.     

Holland's theory and college-degreed working black and white women

The main concern of this study was to investigate differences between black and white women employed in traditional male occupations who took the Vocational Preference Inventory (VPI) and the Self-Directed Search (SDS). The VPI and the SDS were administered to 155 black and white college-degreed workers in three occupations (engineering, medicine, and law) corresponding to three of Holland's environmental categories (Realistic Investigative, and Enterprising). In general, the findings for the three VPI and SDS scales for these occupational groups indicate that white women when compared to black women in the same occupation tend to report similar mean raw scores.     

Stutterer''s scaled attitudes and their prognostic significance in therapy

Thirty individuals who manifested stuttering behavior participated in an intensive therapy program. Measures of pretherapy attitudes on the Attitude and Behavioral Observation Scale, which consists of self-evaluations of attitudes on a scale of five equal-appearing intervals and also two questionnaires, the Iowa Scale of Attitude Toward Stuttering and the Stutterer's Self-Ratings of Reactions to Speech Situations were utilized. These three scales were found to be significantly correlated. A difference score from the Motor Performance Scale, a speech proficiency scale of one to five was completed at pre- and posttherapy, as a measure of the client's success from therapy. Generally, pretherapy attitudes did not correlate significantly with success from therapy.     

Individual differences in imagery vividness and voluntary heart rate control

Dispositional differences in imagery vividness may account partially for the large individual differences in learning heart rate control. Based upon scores on the Betts QMI Vividness of Imagery Scale, 10 subjects were defined as a high imagery group and 10 subjects were defined as a low imagery group. All subjects were instructed to try to alter their heart rate as indicated by appropriately labeled lights. Six increasing, six decreasing and six rest, 45-sec trials were presented. During the trials, visual heart rate feedback was provided by a digital voltmeter. The dependent measure was computed by subtracting the mean of the last 5 beats of a 15-sec intertrial interval from the mean rate per trial. Results indicated that subjects were able to significantly raise and lower heart rate relative to rest trials. Furthermore, high imagery subjects demonstrated significantly larger changes than low imagery subjects on increase trials but not on decrease trials. Subjects in both groups typically reported using more specific images for increasing heart rate than for decreasing heart rate. These data suggest that dispositional differences in imagery vividness may have contributed to the differential performance of the two groups during the increase task.     

Reaction times of severe Broca's aphasics to monaural verbal stimuli

Reaction times of nine subjects with severe Broca's aphasia were measured to verbal stimuli presented monaurally to their left or right ears. The aphasic subjects showed left-ear advantages in reaction times to verbal stimuli, paralleling dichotic findings among aphasic patients. The results are interpreted as consistent with right-hemisphere language processing.