Sexual Behavior of C57BL/10 Mice and its Relation to Early Social Experience

Unexpectedly, imitation of value judgments (design preferences) by male and female third and sixth graders (N = 366) generally did not result from exposure to adult film models (Ms). As expected, the variable of identification was more sensitive to the experimental manipulation of M's characterological traits than the measure of imitation. As expected, children identified with an honest as opposed to dishonest M; however, dominance versus submission had no such effect, suggesting that power related theories are far from adequate in explaining identification. In third grade, children viewed leadership strictly in terms of dominance, while, unexpectedly, in sixth they viewed leadership in terms of character (honesty). Other unexpected significant results also were heuristic, suggesting that several dependent variables not previously emphasized in the experimental modeling literature with children merit greater attention: negative imitation (negativism), negative identification (disaffiliation), and the effects of characterological and physical appearance variables on both identification and imitation.     

The distracting effect of material reward: An alternative explanation for the superior performance of reward groups in probability learning

To determine whether the distraction effect associated with material rewards in discrimination learning can account for the superior performance of reward groups in probability learning, the performance of 144 school children (preschool, second, and fifth grades) on a two-choice successive discrimination task was compared under three reinforcement conditions (material reward, marker, and knowledge of results). The two events in the task had different frequencies of occurrence, as in probability learning, yet they appeared in a constant order to make 100% payoff possible. The subjects in the reward and marker groups learned the task more slowly, and the nonlearners among them used stereotyped alternation patterns to a greater degree than subjects in the knowledge-of-results condition. These findings suggest that a distracting effect of material reward is present in probability learning and may explain the superior performance of reward groups typically found in probability learning studies.     

Effects of vicarious consequences on imitation and recall: Some developmental findings

Two experiments were conducted using a multiple-item list in which each item consisted of a pair of pictures. The model indicated which member of each pair she preferred and was either positively reinforced, negatively reinforced, or received neutral consequences. The S then indicated his preferences (imitation test). Following the imitation test, each S was asked to recall the model's choices. Age was an independent variable in both experiments. Imitation scores of the children, preschool to sixth-grade age range, were strongly influenced by differential vicarious reinforcement. Vicarious reward increased imitation and vicarious punishment decreased it. College students' imitation scores were only minimally influenced by differential vicarious reinforcement. Within- and between-subjects variations of vicarious reinforcement had similar effects. Recall scores were surprisingly high and were not significantly influenced by differential vicarious reinforcement. Interestingly, age and percentage of correct recall were negatively correlated.     

Effects of performance expectancies created by peer comparison as related to social reinforcement,task difficulty,and age of child

Children in kindergarten-first grades and fourth-sixth grades (6 and 10 years of age, respectively) participated in one of two experiments and performed either a simple motor task or (for older children only) a two-choice simultaneous discrimination task at two difficulty levels. Children received either positive, negative, or no peer comparison statements (describing how other children their age had allegedly performed) and either praise, silence (in Experiment 2 only), or criticism on a fixed-interval 20-second schedule throughout the task. Young children were more responsive to adult evaluation of their performance than to peer comparison. Expectancies created by peer comparisons affected older children's motor performance most if they received reinforcement contrary to the expectancy. In situations requiring greater cognitive ability, older children, particularly boys, responded to the performance expectancies created by positive peer comparison. Older boys, compared with older girls, seemed to be more sensitive to peer comparison and social reinforcement.     

Undermining the Zeigarnik effect: Another hidden cost of reward

Forty college students participated in a study ostensibly designed to obtain measures of the hemispheric activity while they worked on a spatial reasoning task. In fact, our true interest was in determining whether subjects would return to the spatial reasoning task once the hemispheric recordings were completed. Subjects would normally be expected to return to the task by virtue of the Zeigarnik effect because no subject completed the task during the “hemispheric recording” phase. The manipulation involved telling one group of subjects that they would be paid $1.50 for participating in the study (expected reward group). The remainder of the subjects were not led to expect the reward (unexpected reward group). The result was that 86% of the unexpected reward subjects but only 58% of the expected reward subjects (p < .05) manifested the Zeigarnik effect. This differential tendency to return to the task was further reflected in time differences. The average unexpected reward subject spent 3 min 48 sec of a five-minute free-choice period at the task, whereas the average expected reward subject spent only 2 min 20 sec (p < .05). Reward expectancy, therefore, led to an undermining of the Zeigarnik effect. This observation supports Condry's prediction that rewarding performance at a task can lead to premature task disengagement.     

Young Children Prefer and Remember Satisfying Explanations

Research with preschool children has shown that explanations are important to them in that they actively seek explanations in their conversations with adults. But what sorts of explanations do they prefer, and what, if anything, do young children learn from the explanations they receive? Following a preliminary study with adults (N = 67) to establish materials for use with children, we addressed this question using a seminaturalistic methodology. Four- and 5-year-olds (N = 69) were dissatisfied when receiving nonexplanations to their explanatory questions, but they were satisfied when receiving explanations, and their satisfaction varied appropriately across several levels of explanatory information. Moreover, using recall as a measure of learning, whereas children typically failed to recall nonexplanations, their recall of explanatory information was consistently high and also varied appropriately across differing levels of information provided. These results confirm that children not only actively seek informative explanations in their everyday conversational interactions with adults, but they selectively retain the answers they receive.     

Instrumental learning in preschool children as a function of type of task, type of reward, and some organismic variables

The effects on instrumental behavior of differences in type of task, type of reward and three organismic variables were investigated in preschool children. The main results were that: (a) an imitative task was acquired in fewer trials than a nonimitative task; (b) social reward in acquisition led to greater resistance to extinction; (c) a history of frequent social reinforcement from peers led to persistence in responding during extinction for boys only; (d) extraversion was found to interact with the variables of task and reward in errors made during extinction; and (e) intelligence was not found to be a reliable predictor of main acquisition and extinction measures or related errors. Detailed analysis of the different types of errors contributed directly to the interpretation of these findings.     

The attenuating effect of mortality salience on dishonest behavior

People are easily tempted to engage in dishonest behavior when an incentive is given and when full anonymity is provided. In the present work, we investigated existential threat as a motivational factor that might reduce dishonest behavior. Research based on terror management theory has found that mortality salience increases the motivation to fulfill salient values of one’s cultural worldview. Assuming the concept of honesty is important to human societies, we hypothesized that mortality salience will reduce dishonest behavior when the concept of honesty is salient. In two experiments, we assessed dishonesty under full anonymity by applying a die-under-the-cup paradigm with the expected value serving as a stochastic baseline for honest behavior. Both experiments provided support for our hypothesis. Given an incentive to cheat, when the concept of honesty was cognitively activated by a word-search puzzle (Study 1) or by the name of the dice game (i.e., “honest game”; Study 2), mortality salient participants showed not only less dishonest behavior but actually honest behavior.

     

Behavior modification of aggressive behavior on a nursery school bus: A case study

A case study is presented in which aggressive behavior of two preschool boys on a nursery school bus was modified by the introduction of a negative punishment contingency in which the Ss were told they would be detained on the bus until the second time the bus passed their house (delay of reinforcement) if abusive behavior occurred. The practical implications of the study and the relative merits of choosing negative punishment over positive punishment as therapy with children are discussed.     

Conditional Reactions in the Rat

To assess the effects of the presence of the experimenter (E) and/or modelrewarder (MR), elementary school children observed a model emit specific sequences on a button pressing task in two separate experiments (N = 50 and N = 80). The first design was a 2 × 2 factorial involving the presence-absence of the E/MR and model reward vs. model no-consequences; the second design was a 4 × 2 factorial with all possible combinations of presence-absence of the E and/or MR, and model reward vs. model no-consequences. It was found that model reward increased imitation only in the condition in which the E was present and the MR was absent.     

The effects of reward on tutor's behaviors in a cross-age tutoring context

Utilizing a cross-age tutoring context, this study examined the effects of reward on the teaching behaviors of the tutor, the tutor's subsequent motivation to continue to teach during a free choice period, and the social interaction between a tutor and a tutee. Third-grade boys and girls (n = 96) who exhibited a positive reinforcement style were asked to teach six addition problems to a first-grade boy or girl (n = 96). The children were randomly assigned to pairs and to one of the three reward conditions. In the performance-contingent reward condition, the tutors were promised a toy if the first-grader learned all of the arithmetic problems. In the noncontingent reward condition, the tutors were promised a toy for teaching the first-grader. In the no reward condition, the tutors taught the first-grader without promise of a toy. The results indicated that the social interaction was rated lower for the children in the performance-contingent group and that the tutors in this group spent less time teaching during the free choice period. However, neither the tutor's teaching style nor the tutee's post-test performance was adversely affected by the reward.     

The effects of modifying color-meaning concepts on racial concept attitudes in five- and eight-year-old children

Williams and Edwards (1969) found that changing the positive and negative evaluations given to color concepts by preschool children through reinforcement procedures over two sessions reduced their racial concept attitude scores measured during a third session. The present study replicated their negative reinforcement and control procedures with 5-year-old children, and extended their research to include 8-year-old children. The present results replicated the original findings and in fact showed a larger change in racial attitude scores. While the color-meaning concepts were modified to a greater extent in the older children, the effect of the negative reinforcement procedure on racial attitude scores was similar for the two age groups.     

Using stress and resource theories to examine the incentive effects of a performance-based extrinsic reward

We expected a positive boosting effect of a performance-based extrinsic reward on motivation and performance for those with higher control-related resources (i.e., perceived task control and trait self-control) and a positive compensating effect for those who lacked these resources. Study 1 supported compensation. Those with lower resources experienced a beneficial effect of reward on motivation and performance (i.e., compared to no reward). In Study 2, coping was examined as a mechanism. Again, reward compensated for lower resources, enhancing motivation, and performance due to enhanced coping. For those with higher resources, reward boosted motivation and performance due to coping. Thus, the interactive effects of reward and resources are paradoxical: higher resources can maximize the utility of a reward, but reward can also compensate for low resources.     

Reduction of children's locomotor activity by modeling and the promise of contingent reward

Sixty children aged 4 and 5 were observed in an open field situation under instructions to stay in one part of a playroom and to play with a single toy of their choice during an initial 15-minute period. They were then placed for 5 minutes in an adjacent observation room and exposed to 1 of 5 different experimental conditions. Subjects in the modeling conditions observed an adult male sitting in one distinctive part of the playroom and playing with Tinker Toys. Subjects in the enriched modeling condition also saw the model receive reward for his subdued behavior and heard him verbalize reasons for his actions. Subjects in nonmodeling conditions merely observed the empty playroom during the 5 minutes. Finally, all subjects were observed in the playroom for a second 15-minute session. Children in the reinforcement conditions were now promised pennies for staying in one part of the room and playing with a single toy of their choice. Both modeling and the promise of contingent reward resulted in a reduction of locomotor activity and a reduction of toy-switching behavior, though the effects of these variables did not combine in an additive way. Enriched modeling had an additional effect on toy-switching behavior only. Males spent more time in the modeled quadrant than did females. The results were interpreted as support for the importance of modeling and reinforcement in children's compliance with instructions.     

Interaction Effect of Extrinsic Rewards and Socioeconomic Strata

In an attempt to account for the poor test performance of lower-SES children, two conflicting theories were examined: (a) the early damage theory holds that lower-SES children have undergone such early and intensive deprivation that they cannot perform in testing situations; (b) the alienation theory contends that the public schools are middle-class institutions with middle-class intrinsic rewards which do not motivate lower-SES children. When faced with the testing situation the children choose not to perform. In order to test these theories, upper- and lower-SES students (N = 250) were randomly assigned to extrinsic and conventional reward conditions. The multivariate analysis of co-variance techniques indicated a significant (.01 level) improvement in the test performance of lower-SES children when extrinsic (money, food) rewards, as well as conventional rewards, are offered. Extrinsic rewards did not significantly improve the test performance of upper-SES children.     

Predicting school performance of preschool children from parent reports

Parents of 391 preschool children ages 49 to 64 months completed a brief developmental inventory as part of a preschool screening program operated by an urban school district. The 28-item developmental inventory assessed adaptive behavior and language development. In addition, preschool children were administered the Minneapolis Preschool Screening Instrument. Teacher ratings of kindergarten performance the following year provided criterion data to validate the screening measures. Correlations with the overall teacher rating [the mean of nine ratings] were .40 for the adaptive behavior scale and .57 for the language scale. Validity figures for the developmental inventory were significantly higher for low SES than for high SES children, for older children [57 to 64 months] than for younger children [49 to 56 months], and for firstborn children than for younger siblings. No effects were found by sex. While a positive relationship between parent reports of developmental functioning and early school performance was clearly established, validity levels did not justify use of parent information as a sole source of preschool screening information.This research was supported in part by a grant from the Bureau of Education for the Handicapped.     

The heterogeneous processes of cheating: Attention evidence from two eye tracking experiments

Dishonesty erodes society. Although much is known about dishonesty, the process leading up to the decision of whether to be honest or dishonest is often assumed to be homogenous and is not well understood. In this paper, we take a more nuanced approach and explore more closely the process of deciding whether to cheat or be honest when an opportunity to cheat arises. We do this in two laboratory eye tracking experiments. In our first experiment (n = 193), we identify heterogeneity in the decision to cheat. Some decisions on whether to cheat or be honest exhibit relatively little variation and appear to be oriented towards cheating (or honesty) with apparently little consideration of the alternative, whereas other decisions seem to be characterized by a higher degree of consideration for both decision alternatives. Our second experiment (n = 299) demonstrates that a gaze dependent intervention in the choices process is able to affect the behavioral outcomes.     

Young children's beliefs about self‐disclosure of performance failure and success

Self‐disclosure of performance information involves the balancing of instrumental, learning benefits (e.g., obtaining help) against social costs (e.g., diminished reputation). Little is known about young children's beliefs about performance self‐disclosure. The present research investigates preschool‐ and early school‐age children's expectations of self‐disclosure in different contexts. In two experiments, 3‐ to 7‐year‐old children (total N = 252) heard vignettes about characters who succeeded or failed at solving a puzzle. Both experiments showed that children across all ages reasoned that people are more likely to self‐disclose positive than negative performances, and Experiment 2 showed that children across all ages reasoned that people are more likely to self‐disclose both positive and negative performances in a supportive than an unsupportive peer environment. Additionally, both experiments revealed changes with age – Younger children were less likely to expect people to withhold their performance information (of both failures and successes) than older children. These findings point to the preschool ages as a crucial beginning to children's developing recognition of people's reluctance to share performance information.     

Performance Effects of Reward-Related Feedback on the Dimensional Change Card Sort Task

The Dimensional Change Card Sort (DCCS) is one of the most widely used measures of preschool executive function, yet relatively little is known about how altering emotional demands of the task affects DCCS performance. This study examined the effects of emotionally evocative reward-related feedback on preschool children's performance on the DCCS in a sample of 105 children aged 3.5–4.5 years. In a within-subjects design, children completed the standard DCCS and a modified version of the DCCS in which sticker rewards were gained or lost after each trial. With a reward at stake, children were more accurate but had slower reaction time on the post-switch DCCS. Another sample (N = 20) of 3.5- to 4.5-year-olds who completed the standard DCCS twice without reward showed no change in performance, indicating results are not due to practice effects. Findings demonstrate preschool children's ability to adjust their approach to the DCCS in the presence of emotionally evocative reward-related feedback by prioritizing accuracy over speed. Trial-by-trial reward-related feedback may facilitate cognitive control in early childhood.