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251.
252.
William E. Tunmer Andrew R. Nesdale Chris Pratt 《Journal of experimental child psychology》1983,36(1):97-108
Research by Markman (1979) suggests that children up to 12 years of age do not spontaneously detect logical inconsistencies. The present study was directed to factors which may limit children's ability to recognize their failures to understand. A task was devised which involved materials that were clearly based on children's experiences, and which involved premises and conclusions which were presented contiguously, rather than being interspersed among other sentences. Ninety-six 5-, 6-, and 7-year-old children were asked to judge the acceptability of eight three-sentence “stories” told by a puppet, and were asked to justify their responses. The stories differed in whether they were consistent or inconsistent, and in whether the principle upon which a story's consistency depended was implicitly or explicitly stated. The results showed developmental differences. By Age 7 years, most children were quite capable of evaluating sentences for their logical consistency. Five-year-olds, however, did not perform as well on the task, especially when the information upon which the logical cohesiveness of the stories rested was implicitly, rather than explicitly, stated. An examination of the justifications provided by these children revealed that they tended to question the empirical validity of individual sentences, rather than integrate the story as a whole and examine its overall logical structure. 相似文献
253.
William Scott Terry 《Learning and motivation》1983,14(1):107-122
Four experiments investigated the effects of a priming food reinforcement, given 0 or 75 sec pretrial, on runway performance of rats. The studies differed in the use of between-versus-within-subject designs, and by using food or water as the goal reinforcer. In Experiment 1, using food as the goal reward, subjects primed with food 0 sec pretrial conditioned slower than subjects primed 75 sec pretrial. In Experiment 2, using water as the goal reward, subjects primed with food 0 sec pretrial conditioned faster. These differences were evident on both prefed trials and on nonprefed test trials. Experiments 3 and 4 showed an opposite pattern of results when within-subject comparisons of 0- and 75-sec pretrial intervals were used: Food priming immediately pretrial facilitated food-rewarded running but inhibited water-rewarded running. The results suggest prefeeding has differential effects on acquisition and performance of instrumental behavior, and also depending upon the similarity of the priming and goal reinforcers. 相似文献
254.
255.
Ronald J. Prinz deRosset Myers E. Wayne Holden Kenneth J. Tarnowski William A. Roberts 《Journal of abnormal child psychology》1983,11(3):393-399
In previous work, investigators have found a relationship between marital discord and childhood conduct problems (aggression) in clinic samples. Given the wide variability of aggression found among hyperactive children,it would follow from previous work that child aggression may be associated with marital discord in a hyperactive population. This hypothesis was tested in a sample of 23 boys (ages 5 to 8) diagnosed as attention deficit with hyperactivity. Aggressive behaviors were tracked by the children's teachers for 12 school days. Parental and teacher ratings of conduct problems were also obtained. Additionally, the auditory version of the laboratory Continuous Performance Test was administered. Marital adjustment, overt hostility, and conflict tactics, as reported by the mothers, were not significantly correlated with any of the measures of aggression or conduct problems. In other words, marital discord in families with a hyperactive boy did not explain differential rates of aggressive behavior despite definite variability in both the marital and child behavioral measures. Marital discord was marginally related to severity of attentional deficit on the Continuous Performance Test. The results underscore the need for caution in attempting to extend findings from a general population (i.e., undifferentiated clinicreferred children) to a specific diagnostic subgroup (i.e., attention-deficit hyperactive children). 相似文献
256.
Language comprehension tasks involving pronoun coreference were administered to a group of demented patients, a group of patients with cardiac disease, and groups of normal elderly persons and young adults. Pronoun coreference was constrained by either lexical, syntactic, or contextual cues. No differences were found between old and young subjects for any task. While the demented patients were impaired on all tasks, the cardiac patients were specifically impaired in the inferential processing of context. 相似文献
257.
Leslie J. Francis Paul R. Pearson William K. Kay 《Personality and individual differences》1983,4(2):211-212
The JEPQ and a religious attitude scale, ASC 4B, were completed by 1715 school children aged 11–17 yrs. Attitude to religion was found to decline across the age range, girls were found to be more religious than boys, and introverts more religious than extraverts. The relationship between introversion and religiosity is consistent with previous research and the present study adds substance to this relationship with the use of a more recent E scale on an extended age range. 相似文献
258.
A nationwide survey of a stratified sample of 461 Army ROTC college cadets and 470 of their non-ROTC schoolmates was conducted in order to investigate sex and racial differences in military-related perceptions and attitudes. This article focuses on survey findings dealing with sex differences in respondents' military socialization, knowledge of ROTC and the Army, attitudes toward ROTC and the Army, and behavioral intentions with respect to a military career. Female cadets had (1) fewer military socializing influences, (2) less accurate knowledge about ROTC and the Army, (3) more favorable attitudes toward ROTC and the Army, and (4) less favorable intentions regarding military service than male cadets. Findings 2, 3, and 4 were also obtained in the noncadet schoolmate group; however, in this group, there were no significant sex differences in military socializing influences. A model based on these findings is developed as a starting point for attempts to account for the higher attrition rates of women in the military. 相似文献
259.
The light-emitting diode (LED) is becoming increasingly popular as a luminance source in behavioral research. We describe a simple, inexpensive LED driver circuit that produces luminances almost linearly proportional to an input voltage. Negative feedback provides a stable output. Unlike previous designs, the LED is ground referenced. 相似文献
260.
Evoked-potential measurements can readily be implemented on a microcomputer. We present as an example a system for obtaining an evoked-potential augmenting/reducing measure using the Apple II microcomputer. Specialized features of the PASCAL program and peripheral equipment are described. 相似文献