共查询到20条相似文献，搜索用时 15 毫秒
1.
Preschoolers' Reasoning about Density: Will It Float? 总被引：1，自引：0，他引：1
Amy S. Kohn 《Child development》1993,64(6):1637-1650
Density is a complex concept found to appear late in development. However, density has a readily apparent empirical consequence—buoyancy. Early scientific understanding of density arose through Archimedes' discovery of water displacement as a function of density, and young children have experience playing with objects in water. Therefore, a buoyancy prediction task was developed in order to access preschoolers' early understanding of density. 3–5-yearold children from 2 preschool classes, as well as adults, made buoyancy predictions for a set of objects that varied systematically in density, weight, and volume. 4–5-year-olds (from the older class) and adults were shown to demonstrate similar patterns in their judgments. Objects much more or much less dense than water were more accurately judged than objects with densities closer to the density of water. Weight and volume were found to "interfere" in these judgments in systematic ways for the older class of children and the adults. Children in the younger class (3-year-olds) showed a mean proportion correct performance of .53; they all passed a pretest, however, and no child refused to make judgments. 相似文献
2.
Both adults and adolescents often conform their behavior and opinions to peer groups, even when they themselves know better. The current study investigated this phenomenon in 24 groups of 4 children between 4;2 and 4;9 years of age. Children often made their judgments conform to those of 3 peers, who had made obviously erroneous but unanimous public judgments right before them. A follow-up study with 18 groups of 4 children between 4;0 and 4;6 years of age revealed that children did not change their "real" judgment of the situation, but only their public expression of it. Preschool children are subject to peer pressure, indicating sensitivity to peers as a primary social reference group already during the preschool years. 相似文献
3.
Children of 3 ages (8, 10, and 12 years) and adults were asked to decide rapidly whether 2 line drawings were same or different based on either physical appearance (physical match) or name information (name match). Reaction times were used to estimate several temporal measures of information-processing efficiency, such as the difference between different and same judgments, the difference between name-match and physical-match judgments, and 2 types of interference. Different judgments required more time than same judgments for children but not for adults, and the difference between these decreased with age. As expected, name judgments required more time than physical judgments, but the difference did not decrease regularly with age. Interference in name-match decisions due to conflicting and irrelevant physical information decreased with age; however, interference in physical-match judgments due to conflicting and irrelevant name information does not decline with age and was a significant factor in the performance of older children and adults. The results underscore the complex character of developmental change in processing efficiency. 相似文献
4.
The current study experimentally investigated the impact of causal-explanatory information on weight bias over development. Participants (n = 395, children ages 4–11 years and adults) received either a biological or behavioral explanation for body size, or neither, in three between-subjects conditions. Participants then made preference judgments for characters with smaller versus larger body sizes. Results showed that both behavioral and biological explanations impacted children’s preferences. Relative to children’s baseline preferences, behavioral explanations enhanced preferences for smaller characters, and biological explanations reduced these preferences—unlike the typical facilitative impact of biological-essentialist explanations on other biases. The explanations did not affect adults’ preferences. In contrast to previous findings, we demonstrate that causal knowledge can impact weight bias early in development. 相似文献
5.
Six-year-old children can judge a speaker's feelings either from content or paralanguage but have difficulty switching the basis of their judgments when these cues conflict. This inflexibility may relate to a lexical bias in 6-year-olds' judgments. Two experiments tested this claim. In Experiment 1, 6-year-olds (n = 40) were as inflexible when switching from paralanguage to content as when switching from content to paralanguage. In Experiment 2, 6-year-olds (n = 32) and adults (n = 32) had more difficulty when switching between conflicting emotion cues than conflicting nonemotional cues. Thus, 6-year-olds' inflexibility appears to be tied to the presence of conflicting emotion cues in speech rather than a bias to judge a speaker's feelings from content. 相似文献
6.
Adults modify the way they speak to children to support children’s learning across several domains. However, no previous research has studied whether adults change their language when explaining science to children. The current study examined if and how adults change the manner in which they talk about science when providing explanations to children vs. providing explanations to other adults. Participants (N = 81) were video recorded while explaining basic science concepts to children and adults. Recordings were later analyzed to determine if and how participants changed the quality and content of their explanations. The results confirmed that adults did change their explanations when talking to children about science by providing more potentially beneficial, but also disadvantageous, information. Participants perceived that they provided more accurate explanations to children, but appeared to be making metacognitive judgments largely based upon the changes made that could be beneficial to learning. Taken together, this work suggests that science may be a domain in which adults are not well equipped to modify and monitor their language to children. 相似文献
7.
《Early childhood research quarterly》2005,20(2):239-253
This study examined the knowledge and strategies that young children used for comparing sizes of geometric figures. Sixty-nine children from the ages 3 to 6 years were asked to compare sizes of geometric figures and their placement and adjustment strategies were observed. The children were also presented with strategies for comparing sizes and asked to choose the most effective one. As a result, children showed four different patterns of uses of strategies and judgments. Differences among children showing the four patterns (referred to as clusters 1–4) were summarized as follows: (a) children in clusters 2–4 made correct judgments for the relative sizes of figures placed on one another, (b) children in clusters 3 and 4 very often used the strategy of adjustment based on two dimensions, (c) only children in cluster 4 very often used the strategies of superimposition and adjustment based on two dimensions at the same time and made more correct judgments for the relative areas of two figures; and (d) children in cluster 4 selected as effective the strategy of adjusting figures based on two dimensions. 相似文献
8.
Tedra A. Walden 《Child development》1996,67(5):2074-2085
This was an experimental study of the ability of adults to detect 1 social signal that is important in social interactions, children's glances or looks at their social partners. Adult judges were either parents of children with developmental delays, parents of nondelayed children, or nonparents with little experience with children. Each participant viewed 120 videotaped episodes in which very young children's looks (of 2 types, either a focus on parent's face or nonface focus) occurred or no looking occurred. Half the episodes featured children with documented developmental delays and half featured nondelayed children. Participants made judgments about the occurrence of a look in each episode and rated their confidence in each judgment. Participants made more accurate and quicker responses to social looks by children without than those with developmental delays. Accuracy effects were qualified by interactions with type of look. Participants were more confident of their judgments of looks for nondelayed toddlers than those with delays. Signal detection statistics indicated that looks of delayed toddlers were harder to identify and that judges set a more stringent criterion for responding to those looks. No effects of judges' level of experience with delayed or nondelayed children were found. Implications of these findings for social interaction involving individuals with developmental delays are discussed. 相似文献
9.
Two experiments examined how imposing a delay between learning and reproducing locations influences children's memory for location. In Experiment 1, ninety-six 7-, 9-, and 11-year-old children and adults learned the locations of 20 objects in an open, square box divided into four regions by opaque walls. During test, participants attempted to place the objects in the correct locations without the aid of the dots that had marked the locations or the boundaries that had divided the space. The test phase began either immediately following learning or following a 12-min delay. As predicted by the Category-Adjustment model, bias toward category centers increased significantly following an intervening delay. Moreover, the magnitude of categorical bias followed a systematic U-shaped developmental pattern. Results from a second study (N = 72) replicated this developmental pattern. Discussion focuses on the implications of these results for understanding how children and adults remember locations. 相似文献
10.
The tendency of young children to attend to global and/or local levels of hierarchically structured patterns was examined using an orientation judgment task. 3- and 4-year-old children and adults were asked to judge which way an equilateral triangle was pointing under different contextual conditions. In Experiment 1, contextual variations included overall pattern orientation, configuration alignment type, presence or absence of an immediate frame of reference, and type of local element context. The results showed that, contrary to previous reports in the literature, young children, like adults, attend to both global and local levels of a pattern. Both pattern orientation and the introduction of contextual cues affected children's judgments, and the magnitude of that effect varied with the particular contextual cue present in the stimulus array. In Experiment 2, contextual variations included overall pattern orientation and presence or absence of an internal local level element. Consistent with the results of Experiment 1, young children's orientation judgements were influenced by the addition of local level factors. 相似文献
11.
Despite evidence that young children are sensitive to differences in angle measure, older students frequently struggle to grasp this important mathematical concept. When making judgments about the size of angles, children often rely on erroneous dimensions such as the length of the angles' sides. The present study tested the possibility that this misconception stems from the whole‐object word‐learning bias by providing a subset of children with a separate label to refer to the whole angle figure. Thirty preschoolers (M = 4.86 years, SD = .53) were tested with a pretest–training–posttest design. At pretest, children showed evidence of the whole‐object misconception. After training, children who were given a novel‐word label for the whole object improved significantly more than those trained on the meaning of “angle” alone. 相似文献
12.
Studies with adults suggest that implicit preferences favoring White versus Black individuals can be reduced through exposure to positive Black exemplars. However, it remains unclear whether developmental differences exist in the capacity for these biases to be changed. This study included 369 children and examined whether their implicit racial bias would be reduced following exposure to positive Black exemplars. Results showed that children's implicit pro‐White bias was reduced following exposure to positive Black exemplars, but only for older children (Mage = ~10 years). Younger children's (Mage = ~7 years) implicit bias was not affected by this intervention. These results suggest developmental differences in the malleability of implicit racial biases and point to possible age differences in intervention effectiveness. 相似文献
13.
Past research has investigated the development of stereotypes surrounding race and gender in children; however, there is a lack of literature examining the development of children’s stereotypes of older adults. In this study, 163 children from four grades: first (n = 44), fourth (n = 49), fifth (n = 35), and eighth (n = 35) completed a new trait-rating questionnaire assessing their stereotypes of older adults. Children’s stereotypes of older adults were largely positive. Younger children described older adults in more positive, but more stereotyped, ways than older children. Older children’s views shared a stronger relationship with those of their parents and peers compared to younger children. Together, these results support both cognitive development and social influences as contributing factors to the formation of children’s stereotypes of older adults. 相似文献
14.
The present research investigated the link between perceived event memorability and false-event rejection. In 2 studies, event salience, plausibility, and recency were manipulated. Study 1 showed that high-salience events elicited higher memorability ratings than low-salience events for 5-, 7-, 9-year-olds and adults. Plausibility and recency affected only 9-year-olds' and adults' judgments. Study 2 demonstrated that younger versus older children and adults were less likely to reject false events, and that older children and adults were more likely to reject false events based on salience than were younger children. High-recency false events were more likely to be rejected than low-recency false events. Consistent with prediction, recency moderated the effect of salience. The development of metamemorial awareness and rejection strategies is discussed. 相似文献
15.
Children's social reasoning about inclusion and exclusion in gender and race peer group contexts 总被引：1，自引：0，他引：1
This study investigated whether children's and adolescents' judgments about exclusion of peers from peer group activities on the basis of their gender and race would differ by both age level and the context in which the exclusion occurred. Individual interviews about exclusion in several different contexts were conducted with 130 middle-class, European American children and adolescents. Younger children were expected to reject exclusion, by using judgments based on moral reasoning, regardless of the potential cost to group functioning, whereas older children were expected to condone exclusion on the basis of group membership in cases in which the inclusion of these children might interrupt effective group functioning. On measures of judgments, justifications for those judgments, and ratings of the appropriateness of exclusion, the vast majority of children used moral reasoning and rejected exclusion in contexts in which only the presence of a stereotype justified it. As expected, however, older children (13 years) were more likely to allow exclusion than younger children (7 and 10 years) when group functioning was threatened, and they justified this exclusion by using appeals to effective group functioning. 相似文献
16.
The potential cognitive basis for anger in children was investigated by having 5-, 6-, 9-, 11-, and 15-year-old children offer moral evaluations and anger judgments about 8 incidents of property damage that differed in terms of the perpetrator's personal responsibility. Personal responsibility was manipulated by varying the events in terms of 3 dimensions: avoidability, intentionality, and motive acceptability. Results showed that these dimensions similarly affected children's moral- and anger-related judgments. Children's use of the personal responsibility dimensions was also associated with giving lower anger judgments, which suggests that anger instigation to property damage is moderated by the ability to take a normative perspective on transgressions. 相似文献
17.
Children's understanding of the implications of causal attributions for emotional experiences 总被引：1，自引：0，他引：1
Children's perceptions of how the cause of achievement outcomes affects individuals' emotional responses were studied. In Study 1, children aged 6 and 7, 9 and 10, and 12 and 13 listened to stories describing hypothetical children's achievement outcomes. Success and failure were explicitly attributed to luck, ability, effort, or another person's intervention. After each story subjects rated the story child's emotional reactions. Only seventh graders associated pride and shame exclusively with outcomes attributed to ability and effort. Guilt was strongly associated with effort attributions, and surprise was associated with luck attributions for fourth- and seventh-grade children but not for first-grade children. The attribution-affect linkages assumed by the older children are the same as those found in previous studies of adults. In Study 2, children aged 6 and 7, 9 and 10, and 12 and 13 rated the cause of the outcomes in the same stories according to Weiner's controllability and locus dimensions. Children's placement of specific attributions on these dimensions was used to explain age differences in their beliefs about the effect of the attributions on emotional responses. 相似文献
18.
This study provides evidence that children give priority to ownership when judging who should use an object. Children (N = 269) and adults (N = 154) considered disputes over objects. In disputes between a character using an object and the owner of the object, children, as young as 3 years and as old as 7 years, sided with the owner, and did so more than adults. However, children aged 4 and older disregarded owners' rights in dilemmas where these were pitted against the need to prevent harm. These findings suggest that ownership is central in children's judgments about object use and constrain developmental accounts of how children acquire an appreciation of ownership. 相似文献
19.
Middle childhood may be crucial for the development of metacognitive monitoring and study control processes. The first three experiments, using different materials, showed that Grade 3 and Grade 5 children exhibited excellent metacognitive resolution when asked to make delayed judgments of learning (JOLs, using an analogue scale) or binary judgments of knowing (JOKs, ‘know’ or ‘don’t know’) without the target being present. (The delayed method used here also results in excellent metacognitive resolution in adults). In three subsequent experiments after making JOLs the children were asked to choose which items they would like to restudy to optimize learning. We then either honored or dishonored the children’s restudy choices, and tested their memory performance. In Experiment 4, honoring the children’s choices made no difference to final recall performance. Experiments 5 and 6 showed that when the computer, rather than the children, chose the items for restudy based on theoretical constraints proposed by the Region of Proximal Learning model of study time allocation, the children’s recall performance improved. In all three experiments, Grade 3 children’s choices were random. Whereas the Grade 5 children showed some indication of a metacognitively guided strategy of choosing the lowest JOL items for study, it did not, consistently, improve performance. Apparently, accurate metacognitive monitoring is largely in place in middle childhood, but is not yet converted into effective implementation strategies. This dissociation between metaknowledge and its implementation in choice behavior needs to be taken into account by educators aiming to design interventions to enhance learning in children at this age. 相似文献
20.
The Development of Gender Stereotype Components 总被引：2，自引：0，他引：2
Developmental research has been limited by a narrow concept of stereotypes. A more complex model is presented, and developmental changes in gender stereotypes were investigated using the new model. In 2 studies, children were told about several sex-unspecified children, each described as having 1 masculine or 1 feminine characteristic. The children then predicted the likelihood of each story child having other masculine and feminine characteristics. In Study 1, 56 children (4–6 years) were told about target children who liked either a masculine or feminine toy, and then children predicted the targets' interests in other toys. In Study 2, 76 older children (6, 8, 10 years) were told about target children with a masculine or feminine characteristic from 1 of 4 categories (appearance, personality, occupations, toys), and then they predicted the likelihood of targets having other masculine and feminine characteristics from the same and from different categories as the cue. 2 developmental trends emerged: ( a ) children appear first to learn associations among characteristics relevant to their own sex and, later, to learn them for the other sex, and ( b ) older children's stereotypic judgments are more extreme than those of younger children. The implications of these results for the development of stereotypes, assessing gender knowledge, and understanding social judgments are discussed. 相似文献