National culture and flight deck automation: results of a multination survey

Attitudes regarding flight deck automation were surveyed in a sample of 5,879 airline pilots from 12 nations. The average difference in endorsement levels across 11 items for pilots flying automated aircraft in 12 nations was 53%, reflecting significant national differences in attitudes on all items, with the largest differences observed for preference and enthusiasm for automation. The range of agreement across nations was on average four times larger than the range of agreement across different airlines within the same nation, and roughly six times larger than the range across pilots of standard and pilots of automated aircraft. Patterns of response are described in terms of dimensions of national culture. Implications of the results for development of safety cultures and culturally sensitive training are discussed.     

Effects of choice and immediacy of reinforcement on single response and switching behavior of children

Children responded on a single operandum to produce marbles or candy within a two-component multiple schedule and then were allowed to choose which component was in effect. Experiment I examined the effects of exchanging marbles after sessions for subject-selected or experimenter-selected candy. Rate of response to the single operandum was not affected. However, when the subjects could switch components, they spent the majority of time and responded at somewhat higher rates in a component where marbles were exchangable for subject-selected candy. Experiment II examined the effects of eliminating the immediate marble consequence for responses. Rate of response to the single operandum was not affected. However, when subjects could switch components they spent more time in a component where immediate marble consequences were available for responses, than where no immediate marble consequences were available.     

Phonemic restorations based on subsequent context

Earlier experiments have shown that when one or more speech sounds in a sentence are replaced by a noise meeting certain criteria, the listener mislocalizes the extraneous sound and believes he hears the missing phoneme(s) clearly. The present study confirms and extends these earlier reports of phonemic restorations under a variety of novel conditions. All stimuli had some of the context necessary for the appropriate phonemic restoration following the missing sound, and all sentences had the missing phoneme deliberately mispronounced before electronic deletion (so that the neighboring phonemes could not provide acoustic cues to aid phonemic restorations). The results are interpreted in terms of mechanisms normally aiding veridical perception of speech and nonspeech sounds.     

Locus of Control and Attitudes of Workers and College Students Toward Members of Selected Occupations1

A sample of workers rated the members of 20 selected occupations in terms of their perceived competence, altruism, truthfulness, and power. A comparison sample of college students rated these occupations on the same dimensions and on status. The results generally supported Rotter and Stein's argument that members of the general public have stable beliefs concerning the characteristics of members of different occupations, but not their contention that members of the more powerful occupations are seen more negatively than members of less powerful positions. The data also indicated that the attitudinal ratings of the occupations were affected by individual differences in locus-of-control orientation, with externally oriented people rating more of the members of the occupations more unfavorably than ones with internal orientations.     

Training generative verb usage by imitation and reinforcement procedures

Three retarded children were trained, using imitation and reinforcement procedures, to produce past and present tense forms of verbs in response to verbal requests. Two types of experimental sessions were arranged: training sessions and probe sessions. During training sessions, a child was trained to produce one verb in both the past and the present tense. Then, in a probe session, the generalization of this training was tested by presenting to the child a series of untrained verbs interspersed with previously trained verbs. Responses to untrained verbs were never reinforced. Training sessions alternated with probe sessions throughout a multiple baseline design involving four classes of verb inflections as the baselines. The results showed that, as past and present tense forms of verbs within an inflectional class were trained, the children correctly produced past and present tense forms of untrained verbs within this class. When verbs from two or more classes were trained, the children correctly produced the verb tenses from each of these classes. Thus, the imitation and reinforcement procedures were effective in teaching generative use of verb inflections.     

An analysis of daily report cards and parent-managed privileges in the improvement of adolescents' classroom performance

A daily report-card system, involving home privileges administered by parents, was developed for use with "problem" junior-high students. In Experiment I, when home privileges and parent praise were contingent on improved school conduct, classwork, daily grades, and teacher satisfaction, the school performance of three students improved considerably. In Experiment II, a similar report-card system was employed with two additional students, except only parent praise was contingent on improved school performance. Under these conditions, one of the students did not bring the report card home, and class performance did not improve until contingent home privileges were added. The school performance of the second student improved with the card and praise alone. However, there appeared to be a slow decline of classwork performance over time. For Experiment III, an instructional manual, describing the report-card program, was written for school guidance counsellors. Two guidance counsellors read the program, used it with one student each, and found that the school performance of both students improved. These results suggest that the daily report-card program with home consequences administered by parents can improve the school performance of, and teacher satisfaction about, students having considerable difficulty in school.     

Differential responding as a function of auditory stimulus intensity without differential reinforcement

Two groups of four rats each were trained to bar press on a variable-interval 2-min schedule. During training, either 3, 5, or 9 auditory stimuli of various intensities were randomly presented. A direct relationship between stimulus intensity and rate of responding was obtained, but it was more consistent in the group trained initially with three stimuli than for the group that started with nine stimuli. The results are related to the concept of stimulus intensity dynamism and the necessary conditions for the acquisition of stimulus control.