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1.
High school students can access original scientific research articles on the Internet, but may have trouble understanding them. To address this problem of online literacy, the authors developed a computer-based prototype for guiding students’ comprehension of scientific articles. High school students were asked to read an original scientific research article about the effects of drug or alcohol abuse, which was presented on a computer screen either with computer-based comprehension aids or without aids. The aids provided background text and animations including answers given by the article authors. Across two experiments involving different schools and different research articles, the comprehension aids group performed better than the control group on a comprehension test concerning the article (d = +0.79 in Experiment 1 and d = +0.82 in Experiment 2) and rated the content of article as less difficult to read (d = +0.96 in Experiment 1 and d = +0.69 in Experiment 2). In addition, the comprehension aids group reported more positive motivational beliefs than the control group concerning understanding what scientists do (d = +0.51 in Experiment 1 and d = +0.56 in Experiment 2), appraising the article as worthwhile (d = +0.80 for Experiment 1 and d = +0.70 for Experiment 2), and being interested in reading another research article (d = +0.19 in Experiment 1 and d = +0.58 in Experiment 2). The groups did not differ on their attitudes concerning a career as a scientist or about alcohol and drug abuse. Overall, computer-based comprehension aids can help guide students’ comprehension processes for an original scientific research article, which in turn can improve their appreciation of what scientists do.
Richard E. MayerEmail:
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2.
There is growing interest in the role of linguistic cues (accents, dialects, language) in driving children’s social preferences. This meta-analysis integrated 131 effect sizes involving 2,680 infants and children from 2 days old to 11 years. Overall, children prefer native-accent, native-dialect, and native-language speakers over non-native counterparts (d = 0.57). Meta-regression highlighted that bilinguals (d = 0.93) do not exhibit less native-speaker preference compared to monolinguals (d = 0.62). Children displayed stronger preferences based on accent (d = 1.04) than dialect (d = 0.44) and language (d = 0.39). Children’s cultural background, exposure to non-native speech, age, and preference measure were not significant moderators. The data are discussed in light of several theoretical explanations for when and why children show linguistic-based social preferences.  相似文献   

3.
Both salient visual events and scene-based memories can influence attention, but it is unclear how they interact in children and adults. In Experiment 1, children (N = 27; ages 7–12) were faster to discriminate targets when they appeared at the same versus different location as they had previously learned or as a salient visual event. In contrast, adults (N = 30; ages 18–31) responded faster only when cued by visual events. While Experiment 2 confirmed that adults (N = 27) can use memories to orient attention, Experiment 3 showed that, even in the absence of visual events, the effects of memories on attention were larger in children (N = 27) versus adults (N = 28). These findings suggest that memories may be a robust source of influence on children's attention.  相似文献   

4.
This study tested the prediction that, with age, children should rely less on familiarity and more on expertise in their selective social learning. Experiment 1 (N = 50) found that 5‐ to 6‐year‐olds copied the technique their mother used to extract a prize from a novel puzzle box, in preference to both a stranger and an established expert. This bias occurred despite children acknowledging the expert model's superior capability. Experiment 2 (N = 50) demonstrated a shift in 7‐ to 8‐year‐olds toward copying the expert. Children aged 9–10 years did not copy according to a model bias. The findings of a follow‐up study (N = 30) confirmed that, instead, they prioritized their own—partially flawed—causal understanding of the puzzle box.  相似文献   

5.
This study investigated whether seeing iconic gestures depicting verb referents promotes two types of generalization. We taught 3- to 4-year-olds novel locomotion verbs. Children who saw iconic manner gestures during training generalized more verbs to novel events (first-order generalization) than children who saw interactive gestures (Experiment 1, N = 48; Experiment 2, N = 48) and path-tracing gestures (Experiment 3, N = 48). Furthermore, immediately (Experiments 1 and 3) and after 1 week (Experiment 2), the iconic manner gesture group outperformed the control groups in subsequent generalization trials with different novel verbs (second-order generalization), although all groups saw interactive gestures. Thus, seeing iconic gestures that depict verb referents helps children (a) generalize individual verb meanings to novel events and (b) learn more verbs from the same subcategory.  相似文献   

6.
Two independent experiments (n = 22 and n = 22) showed that 2‐month‐old infants displayed significantly more stepping movements when supported upright in the air than when supported with their feet contacting a surface. Air‐ and surface‐stepping kinematics were quite similar (Experiment 2). In addition, when data were collapsed across both experiments, more air steps and more donkey kicks were seen when infants were exposed to optic flows that specified backward compared to forward translation. The findings challenge the currently accepted heavy legs explanation for the disappearance of stepping at 2 months of age and raise new questions about the visual control of stepping.  相似文献   

7.
Children's behavior changes from day to day, but the factors that contribute to its variability are understudied. We developed a novel repeated measures paradigm to study children's persistence by capitalizing on a task that children complete every day: toothbrushing (N = 81; 48% female; 36–47 months; 80% white, 14% Multiracial, 10% Hispanic, 2% Asian, 1% Black; 1195 observations collected between January 2019 and March 2020). Children brushed longer on days when their parents used more praise (d = .23) and less instruction (d = −.22). Sensitivity to mood, sleep, and parent stress varied across children, suggesting that identifying the factors that shape an individual child's persistence could lead to personalized interventions.  相似文献   

8.
Experimental research demonstrates sustained high-quality early care and education (ECE) can mitigate the consequences of poverty into adulthood. However, the long-term effects of community-based ECE are less known. Using the 1991 NICHD Study of Early Child Care and Youth Development (n = 994; 49.7% female; 73.6% White, 10.6% African American, 5.6% Latino, 10.2% Other), results show that ECE was associated with reduced disparities between low- and higher-income children's educational attainment and wages at age 26. Disparities in college graduation were reduced the more months that low-income children spent in ECE (d = .19). For wages, disparities were reduced when children from low-income families attended sustained high-quality ECE (d = .19). Findings suggest that community-based ECE is linked to meaningful educational and life outcomes, and sustained high-quality ECE is particularly important for children from lower-income backgrounds.  相似文献   

9.
This study investigated quantitative and qualitative changes in mental rotation performance and solution strategies with a focus on sex differences. German children (N = 519) completed the Mental Rotations Test (MRT) in the 5th and 6th grades (interval: one year; age range at time 1: 10–11 years). Boys on average outperformed girls on both occasions (dT1 = 0.45; dT2 = 0.35). Strong quantitative change was reflected in increased test scores from time 1 to time 2. The increase was equivalent for girls (d = 1.04) and boys (d = 1.05). Qualitative change was investigated in a multigroup latent transition analysis (LTA) of the MRT items. LTA confirmed findings from prior studies showing that children used different solution strategies to solve the MRT problems. Girls tended to use less efficient strategies than did boys. Moreover, LTA revealed that participants showing inefficient solution strategies at time 1 tended to improve their performance less than students who already showed more elaborate strategies at time 1.  相似文献   

10.
Accurate time perception is crucial for hearing (speech, music) and action (walking, catching). Motor brain regions are recruited during auditory time perception. Therefore, the hypothesis was tested that children (age 6–7) at risk for developmental coordination disorder (rDCD), a neurodevelopmental disorder involving motor difficulties, would show nonmotor auditory time perception deficits. Psychophysical tasks confirmed that children with rDCD have poorer duration and rhythm perception than typically developing children (N = 47, d = 0.95–1.01). Electroencephalography showed delayed mismatch negativity or P3a event-related potential latency in response to duration or rhythm deviants, reflecting inefficient brain processing (N = 54, d = 0.71–0.95). These findings are among the first to characterize perceptual timing deficits in DCD, suggesting important theoretical and clinical implications.  相似文献   

11.
During communication, conversational partners should offer as much information as is required and relevant. For instance, the statement “Some Xs Y” is infelicitous if one knows that all Xs Y. Do children understand the link between speaker knowledge and utterance strength? In Experiment 1, 5‐year‐olds (= 32) but not 4‐year‐olds (= 32) reliably connected statements of different logical strength (e.g., “The girl colored all/some of the star”) to observers who were fully or partially informed. Four‐year‐olds’ performance improved when observer knowledge could be assessed more easily (Experiment 2a, = 25) but remained the same in a nonlinguistic version of Experiment 1 that preserved the epistemic requirements of the original study (Experiment 2b, = 26). These findings have implications for the development of early communicative abilities.  相似文献   

12.
Individuals track probabilities, such as associations between events in their environments, but less is known about the degree to which experience—within a learning session and over development—influences people's use of incoming probabilistic information to guide behavior in real time. In two experiments, children (4–11 years) and adults searched for rewards hidden in locations with predetermined probabilities. In Experiment 1, children (= 42) and adults (= 32) changed strategies to maximize reward receipt over time. However, adults demonstrated greater strategy change efficiency. Making the predetermined probabilities more difficult to learn (Experiment 2) delayed effective strategy change for children (= 39) and adults (= 33). Taken together, these data characterize how children and adults alike react flexibly and change behavior according to incoming information.  相似文献   

13.
Do children consider how others learned when seeking help? Across three experiments, German children (N = 536 3-to-8 year olds, 49% female, majority White, tested 2017–2019) preferred to learn from successful active learners selectively by context: They sought help solving a problem from a learner who had independently discovered the solution to a previous problem over those who had learned through instruction or observation, but only when the current problem was novel, yet related, to the learners' problem (Experiment 1). Older, but not younger, children preferred the active learner even when she was offered help (Experiment 2), though only when her discovery was deliberate (Experiment 3). Although a preference to learn from successful active learners emerges early, a genuine appreciation for process beyond outcome increases across childhood.  相似文献   

14.
It is widely believed that exploration is a mechanism for young children's learning. The present investigation examines preschoolers’ beliefs about how learning occurs. We asked 3‐ to 5‐year‐olds to articulate how characters in a set of stories learned about a new toy. Younger preschoolers were more likely to overemphasize the role of characters’ actions in learning than older children were (Experiment 1, N = 53). Overall performance improved when the stories explicitly stated that characters were originally ignorant and clarified the characters’ actions, but general developmental trends remained (Experiment 2, N = 48). These data suggest that explicit metacognitive understanding of the relation between actions and learning is developing during the preschool years, which might have implications for how children learn from exploration.  相似文献   

15.
Two experiments examined perceptual colocation of visual and tactile stimuli in young infants. Experiment 1 compared 4- (n = 15) and 6-month-old (n = 12) infants’ visual preferences for visual-tactile stimulus pairs presented across the same or different feet. The 4- and 6-month-olds showed, respectively, preferences for colocated and noncolocated conditions, demonstrating sensitivity to visual-tactile colocation on their feet. This extends previous findings of visual-tactile perceptual colocation on the hands in older infants. Control conditions excluded the possibility that both 6- (Experiment 1), and 4-month-olds (Experiment 2, n = 12) perceived colocation on the basis of an undifferentiated supramodal coding of spatial distance between stimuli. Bimodal perception of visual-tactile colocation is available by 4 months of age, that is, prior to the development of skilled reaching.  相似文献   

16.
The ability to evaluate “sins of omission”—true but pragmatically misleading, underinformative pedagogy—is critical for learning. This study reveals a developmental change in children's evaluation of underinformative teachers and investigates the nature of their limitations. Participants rated a fully informative teacher and an underinformative teacher in two different orders. Six‐ and 7‐year‐olds (N = 28) successfully distinguished the teachers regardless of the order (Experiment 1), whereas 4‐ and 5‐year‐olds (N = 82) succeeded only when the fully informative teacher came first (Experiments 2 and 3). After seeing both teachers, 4‐year‐olds (N = 32) successfully preferred the fully informative teacher (Experiment 4). These results are discussed in light of developmental work in pragmatic implicature, suggesting that young children might struggle with spontaneously generating relevant alternatives for evaluating underinformative pedagogy.  相似文献   

17.
In this article we review the literature on attachment patterns in institutionalized children and then perform a meta-analysis on data from 10 attachment studies involving 399 children in institutional settings. We computed the overall attachment distribution of secure, insecure, and disorganized rates and explored the effect of a set of moderating variables (i.e., country of institutionalization, attachment assessment procedure, age at entry, and age at assessment). To overcome bias related to the small number of studies, we conducted both classical and Bayesian meta-analysis and obtained comparable results. Distribution of children's attachment patterns was: 18% secure, 28% insecure, and 54% disorganized/cannot classify. Compared to their family-reared peers, children living in an institution were found to be at greater risk for insecure and disorganized attachment, with a similar medium effect size for both distributions (d = 0.77 and d = 0.76, respectively). The following moderating variables were associated with insecure attachment: representational assessment procedures (d = 0.63) and Eastern European countries of origin (d = 1.13). Moderators for disorganized attachment were: Eastern European countries of origin (d = 1.12), age at institution entry before the first birthday (d = 0.93), and age at assessment under three years of age (d = 0.91). Implications for child development and policies are discussed.  相似文献   

18.
Emotional expressions are abundant in children’s lives. What role do they play in children’s causal inference and exploration? This study investigates whether preschool-aged children use others’ emotional expressions to infer the presence of unknown causal functions and guide their exploration accordingly. Children (age: 3.0–4.9; N = 112, the United States) learned about one salient causal function of a novel toy and then saw an adult play with it. Children explored the toy more when the adult expressed surprise than when she expressed happiness (Experiment 1), but only when the adult already knew about the toy’s salient function (Experiment 2). These results suggest that children consider others’ knowledge and selectively interpret others’ surprise as vicarious prediction error to guide their own exploration.  相似文献   

19.
Instructional animation versus static pictures: A meta-analysis   总被引:8,自引:0,他引:8  
A meta-analysis of 26 primary studies, yielding 76 pair-wise comparisons of dynamic and static visualizations, reveals a medium-sized overall advantage of instructional animations over static pictures. The mean weighted effect size on learning outcome is d = 0.37 (95% CI 0.25–0.49). Moderator analyses indicate even more substantial effect sizes when the animation is representational rather than decorational (d = 0.40, 95% CI 0.26–0.53), when the animation is highly realistic, e.g., video-based (d = 0.76, 95% CI 0.39–1.13), and/or when procedural-motor knowledge is to be acquired (d = 1.06, 95% CI 0.72–1.40). The results are in line with contemporary theories of cognitive load and multimedia learning, and they have practical implications for instructional design.  相似文献   

20.
Emotional design of multimedia instruction involves making the essential elements in the lesson's graphics more appealing, such as by rendering them with human-like features and with distinct, appealing colors (Um, Plass, Hayward, & Homer, 2012). College students received an 8-slide multimedia lesson on how a virus causes a cold for 5 min (Experiment 1) or for as long as they wanted (Experiment 2). For the control group, the graphics consisted of simple black-and-white drawings in which the host cell was represented as a large circle, and the virus was represented as a small circle with small spikes on the outside and a rectangle on the inside. For the enhanced group, the graphics were redrawn to render the host cell as a red face with expressive eyes (registering surprise, fear, and sickness at various stages in the process), and the virus as a blue face with fierce eyes and with a green dot at the end of each of the blue tentacles surrounding the virus face. The enhanced group performed better than the control group on a subsequent learning test (d = 0.69 in Experiment 1, d = 0.65 in Experiment 2) and gave higher effort ratings in Experiment 1 (d = 0.65) but not in Experiment 2 (d = −0.10). The findings are generally consistent with the cognitive affective theory of learning with media, and point to the importance of incorporating motivation into cognitive theories of multimedia learning.  相似文献   

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