Cognitive training for children: Effects on inductive reasoning,deductive reasoning,and mathematics achievement in an Australian school setting

Inductive reasoning is a core cognitive process of fluid intelligence, predicting a variety of educational outcomes. The Cognitive Training for Children (CTC) program is an educational intervention designed to develop children's inductive reasoning skills, with previous investigations finding substantial effects of the program on both inductive reasoning ability and classroom learning. The present study assessed both individual and small‐group CTC training against a no‐treatment control condition to investigate the effects on inductive and deductive reasoning and mathematics achievement in a primary school‐aged Australian cohort. Students who received individual training outperformed those in the control condition on measures of inductive and deductive reasoning, and those in the small‐group condition also outperformed the control condition on a measure of inductive reasoning 3 months following training. However, hypotheses regarding transfer effects to mathematics achievement were not supported. Directions for future research, focusing on extended longitudinal studies and motivational variables, are discussed.     

Development and initial validation of a performance-based scientific reasoning test for children

Scientific reasoning encompasses the cognitive skills used when conducting a deliberate scientific investigation. As there are not that many instruments available for assessing scientific reasoning in children, a new performance-based test was developed that taps children’s command of five key scientific reasoning processes (predicting, experimenting, interpreting, evaluating data, and drawing conclusions). Results of this first validation study with 170 children age 7–10 showed that the test has good item characteristics and acceptable reliability. Initial validity evidence indicated that children’s test scores were unaffected by gender and prior domain knowledge and largely independent of language and math abilities.     

Talking for reasoning among Mexican primary school children

We analysed the development and promotion of ‘exploratory talk’ as a discursive tool to facilitate collective and individual reasoning in Mexican primary school children, following Mercer et al. (Br. Educ. Res. J. 25 (1999) 95) in the UK equivalent experimental and control groups of primary school children were administered a group and an individual problem-solving test before and after training. Teachers of the experimental groups trained their respective students to use competently exploratory talk to make their reasoning visible to others for solving diverse problems. In contrast with control children, experimental ones used significantly more exploratory talk, and this gain was accompanied by a substantial improvement in group and individual problem-solving. Results confirm sociocultural claims that language can function as a powerful tool to facilitate reasoning in social contexts, confirming previous UK findings.     

Effects of a rubric for mathematical reasoning on teaching and learning in primary school

Rubrics are assessment tools that help students gain complex competencies. Our quasi-experimental study aimed to evaluate whether rubrics help teachers teach and assess mathematical reasoning in primary school and whether such an instrument might support student learning. In two Swiss cantons, 762 students in 44 5th- and 6th-grade primary classes worked on their reasoning competencies, and half of them additionally employed our standards-based rubric. All of the teachers received a 1-day training and participated in the final project evaluation. To standardise and support the teachers during the implementation phase, they received a detailed curriculum. An achievement test and questionnaires for students and teachers were administered before and at the end of the intervention. The results of our quantitative longitudinal analyses indicate that the rubric fosters the teachers’ perceived diagnostic skills but only indirectly impacts their use of formative feedback. Based on the students’ perceptions, however, we observed a direct effect of the rubric on formative feedback and student self-assessment. Effects on students’ outcomes could not be observed, but there are indications of effects mediated by self-regulation and self-efficacy.     

Effects of sample size,estimation methods,and model specification on structural equation modeling fit indexes

A Monte Carlo simulation study was conducted to investigate the effects on structural equation modeling (SEM) fit indexes of sample size, estimation method, and model specification. Based on a balanced experimental design, samples were generated from a prespecified population covariance matrix and fitted to structural equation models with different degrees of model misspecification. Ten SEM fit indexes were studied. Two primary conclusions were suggested: (a) some fit indexes appear to be noncomparable in terms of the information they provide about model fit for misspecified models and (b) estimation method strongly influenced almost all the fit indexes examined, especially for misspecified models. These 2 issues do not seem to have drawn enough attention from SEM practitioners. Future research should study not only different models vis‐à‐vis model complexity, but a wider range of model specification conditions, including correctly specified models and models specified incorrectly to varying degrees.     

Family abduction in a national sample of US children

This study examined the prevalence and characteristics of family abduction episodes occurring in a nationally representative sample of US children ages 0–17. It drew on the experiences of 13,052 children and youth from the aggregation of three cross-sectional waves (2008, 2011, and 2014) of the National Surveys of Children Exposed to Violence. The overall prevalence rate was 4.1% for a lifetime and 1.2% for a past year episode. Rates were higher for younger than older children. Parents constituted 90% of the abductors with females outnumbering males 60% to 40%, although men outnumbered women as perpetrators for certain types of abductions. A bit less than half of the episodes (43%) were reported to police. The experience of a lifetime family abduction had an independent association with traumatic stress symptoms independent of exposure to other kinds of victimization including child maltreatment and witnessing family violence.     

Effects of teacher training on children's analogical reasoning performance

Two studies were conducted to assess the effects of teacher training in analogical reasoning on students' performance of analogy tasks. Study One focused on elementary school teachers and students, while Study Two involved early childhood teachers. In Study One, 25 fourth-grade teachers were assigned either to Control, or to Level I or Level II treatment conditions. The Level I condition involved the receipt of detailed analogy lessons. The Level II condition encompassed both the receipt of instructional materials and explicit training for teachers in their underlying theory and use. Further, 19 of the 25 treatment and control teachers were observed during the course of the study to determine the influence of observation of teachers on students' analogical reasoning. Students' performance of an analogy task was compared prior to and following teacher-delivered instruction by means of an analysis of covariance procedure. Results indicated that students in Level II classrooms significantly outperformed Level I students, who significantly outperformed students in Control classrooms. Teacher observation was found to be a significant factor in the performance of Level I, but not Level II or Control, students. In Study Two, teachers participating in two summer programs for gifted preschoolers were taught how to deliver instruction in analogical reasoning to young children, ages three to six. Results demonstrated that children receiving explicit instruction in analogical reasoning scored significantly better on an analogy task than the children assigned to control. No effect for age, race, gender, or Socioeconomic studies were found. Implications of the results of these two studies for educational practice are discussed.     

Risk factors for a New Zealand sample of sexually abusive children and adolescents

OBJECTIVE: The aim was to understand variables contributing to the occurrence of sexual offending in children and adolescents. METHOD: Twenty youngsters who had engaged in coercive sexual behavior involving other children were compared to a matched group of clinic-referred youngsters with conduct disorders. Assessments included family histories, interviews, and psychometric measures. RESULTS: There was no group difference in the frequency of experiencing sexual abuse. However, sexually abusive youngsters were more often exposed to adult caregivers with known histories of being sexually abusive. These children had been subjected to multiple distortions of adult attachment, tended to internalize distress, and failed to use available social supports. They were likely to have experienced physical and verbal abuse; children with behavior disorders were more likely to have a parent with a psychiatric illness and to have experienced parental conflict. CONCLUSION: Severely disrupted attachment, in conjunction with family experiences of inappropriate sexual expression, place children and adolescents at risk for sexual offending. Sexually abusive youngsters had less social supports and their offending occurred after a negative emotional experience, when there was opportunity in the form of younger victims. The study suggests an interaction among developmental pathways, coping skills, and immediate proximal variables for the perpetration of sexual abuse by young people.     

Some aspects of temporal reasoning by young children

The purpose of this article is to present two experiments investigating the ability of children aged 4, 5 to 7 years to reason about temporal problems. The first experiment indicates that within the same problem space, temporal problems are not found by children to be of equal complexity, and secondly that children throughout the age range investigated were able to solve temporal problems with varying sophistication. The second experiment continued the investigation of temporal problem solving using a computer based task. Children’s performance was compared when were given feedback about the effectiveness of their solutions and when no feedback about the effectiveness of their solutions and when no feedback was given. The data suggested firstly, that feedback contributes to the level of sophistication of the solutions offered rather than to overall success, and secondly that the feedback condition contributes to an understanding of the problem space such that children who were given feedback were more effective problem solvers in a subsequent retest.     

Validation of the Kaufman Assessment Battery for Children with a sample of preschool children

The validity of the Kaufman Assessment Battery for Children (K-ABC) (Kaufman & Kaufman, 1983) was investigated with a sample of preschool-age children. The sample consisted of 50 subjects aged 21/2 through 4 who were distributed roughly equally by age, sex, and race according to the 1980 census. The validity of the K-ABC was examined using the Slosson Intelligence Test (SIT) (Slosson, 1982) and the Classroom Behavior Inventory-Preschool Form (CBI) (Schaefer & Edgerton, 1978) as criterion measures. The SIT and CBI-Preschool Form Verbal Intelligence Scale were found to correlate significantly (p<.01) with the global scales of the K-ABC. The K-ABC did not differentiate between age or sex groups, but blacks scored lower than whites. The findings are supportive of previous validity studies (Kaufman & Kaufman, 1983) and two-factor theories of intelligence (e.g., Das, Kirby, & Jarman, 1975).     

The relationship between the WISC-R and WRAT-R for a sample of rural referred children

WISC-R Verbal and Performance IQ scores obtained from a sample of 124 referred children were correlated with WRAT-R achievement scores. The Verbal IQ was found to predict Reading, Spelling, and Arithmetic. The Performance IQ did not add significantly to the predictions. The results were consistent with earlier studies that examined the relationship of the WISC-R to the WRAT.     

Effects of method and format on subjects' responses to a control of variables reasoning problem

Excessive time and training demands have rendered Piaget's clinical method of reasoning assessment impractical for researchers and science teachers who work with large numbers of students. The published literature

1 See: Lawson, A. E. Journal of Research in Science Teaching, 1978, 15 (1), 11-24; Shayer, M., Adey, P., & Wylam, H. Journal of Research in Science Teaching, 1981, 18 (2), 157-168; Staver, J. R., & Gabel, D. L. Journal of Research in Science Teaching, 1979, 16 (6), 534-544; Tobin, K. G., & Capie, W. Educational and Psychological Measurement, 1981, 41 (2), 413-424.

indicates that reliable, valid alternatives to clinical assessment are feasible. However, the overestimate/underestimate of reasoning for different methods and formats remains unresolved through research. The objective of this study was to determine the effects of various methods and formats on subjects' responses to a Piagetian reasoning problem requiring control of variables. The task chosen for this investigation was the Mealworm problem.

2 See: Karplus, R., Lawson, A., Wollman, W., Appel, M., Bernoff, R., Howe, A., Rusch, J., & Sullivan, F. Science teaching and the development of reasoning. Berkeley, CA: University of California, 1977.

The task was presented by three methods: (1) individual clinical interview; (2) group presentation of task followed by paper-and-pencil problem with illustration; and (3) group administration of paper-and-pencil instrument with illustration. Each method included four formats: (1) completion answer with essay justification; (2) completion answer with multiplechoice justification; (3) multiple-choice answer with essay justification; and (4) multiple-choice answer with multiple-choice justification. Two hundred and fifty-three (253) students who were enrolled in a freshman level biological science class participated in the study. The research design was a 3 × 4 factorial design with method and format of assessment as the main effects. The participants were in 12 randomly selected laboratory or discussion sections, and each section was randomly assigned to a cell in the research design. Regression analysis with the individual as the unit of analysis showed that format but not method of assessment accounted for a significant amount of variance in student performance. The overall interaction was nonsignificant. Regression analysis with sections as the unit of analysis revealed nonsignificant findings for both method and format. The interrater agreement in the scoring of the Mealworm task was 82.1%. The principal conclusion is that format but not method of task administration influenced the performance of subjects, and the influence is similar for various combinations of method and format. Discussion is focused on the relative importance of the nonsignificant and significant findings for using alternative methods of Piagetian assessment. The results are also discussed with respect to earlier work, and suggestions for future research as well as implications for teachers are set forth.     

Effects of childhood trauma on personality in a sample of Chinese adolescents

Childhood trauma is a major public health problem which has an impact on personality development, yet no studies have examined the association between exposure to trauma and personality in a sample of Chinese adolescents. Four hundred eighty-five students completed the Childhood Trauma Questionnaire-Short Form (CTQ-SF) and the Eysenck Personality Questionnaire (EPQ). The CTQ-SF cut-off scores for exposure were used to calculate the prevalence of trauma. The possible associations between specific types of trauma and the EPQ subscale scores were examined. The rates of emotional abuse (EA), physical abuse (PA), sexual abuse (SA), emotional neglect (EN), and physical neglect (PN) were 18.76%, 11.13%, 27.01%, 49.48%, and 68.66%, respectively. Individuals subjected to EA, PA, and SA had significantly higher neuroticism (EPQ-N) and psychoticism (EPQ-P) scores on the EPQ compared with those who had not experienced EA, PA, or SA (all p values < 0.05). Significant positive correlations existed between CTQ-SF subscale scores for EA, SA, CTQ-SF total scores, and EPQ-N, EPQ-P scores (all p values < 0.05). Significant number of subjects in this adolescent sample reported experience of childhood abuse and neglect. Exposure to childhood trauma is associated with personality development in Chinese adolescents.     

Working memory as a moderator of training and transfer of analogical reasoning in children

Working memory is related to children’s ability to solve analogies and other inductive reasoning tasks. The aim of this study was to examine whether working memory also plays a role in training and transfer effects of inductive reasoning in the context of a short training procedure within a pretest-training-posttest-transfer design. Participants were 64 children, aged 7–8 years (M = 7.6 years; SD = 4.7 months). All of the children were pre-tested on inductive reasoning and working memory tasks. The children were trained in figural analogy solving according to either the graduated prompts method or practice without feedback. The children were then post-tested on the trained task and three additional inductive reasoning measures. Regression models revealed that visuo-spatial working memory was related to initial performance on each of the inductive reasoning tasks (r ≈ .35). Children’s improvement from pretest to posttest in figural analogy solving, as measured with item response theory models, was somewhat related to visuo-spatial WM but not verbal WM scores or pretest scores. Furthermore, transfer of reasoning skills to an analogy construction task was related to initial ability, but not working memory; transfer to two inductive reasoning tasks with dissimilar content was not apparent. Performance change and ability to transfer trained skills to new tasks are not often used in psycho-educational assessment but may be separate constructs indicative of children’s learning and change.     

基于ESN模型的焦炉火道温度预测研究

为准确建立焦炉火道温度模型,保证焦炭质量,节约能耗,提出了基于回声状态网络(echo state network,ESN)模型的焦炉火道温度的预测方法。针对炼焦过程中强耦合、大滞后的特点,以及实际生产中大量炼焦数据未被合理利用的现状,运用数据驱动与非线性建模相结合的方法,首先,对采集的数据进行数据处理,保证了数据的真实有效性;然后,分别建立了焦炉火道温度系统的BP神经网络预测模型和ESN预测模型;最后,在Matlab环境下进行仿真实验,并对2种预测模型的平均相对误差和命中率进行对比。实验表明:ESN模型与BP神经网络模型相比,平均相对误差减小了0.66%,命中率提高了6.39%,说明在结合数据驱动的前提下,ESN模型更能准确预测火道温度,为下一步火道温度的优化控制奠定基础。     

Re-victimization patterns in a national longitudinal sample of children and youth

OBJECTIVE: To understand to the degree to which a broad variety of victimizations, including child maltreatment, conventional crime, peer, and sexual victimizations, persist for children from 1 year to the next. DESIGN: A national sample of 1467 children aged 2-17 recruited through random digit dialing and assessed via telephone interviews (with caretakers and youth themselves) about a comprehensive range of victimization experiences in the previous year, and then re-assessed (72.3% of baseline sample) after a 1-year interval. RESULTS: The risk for re-victimization in Year 2 was high for children victimized in Year 1, with risk ratios ranging from 2.2 for physical assault to 6.9 for sexual victimization. Victimization of any one type left substantial vulnerability even for different types of subsequent re-victimization (e.g., property crime victimization was associated with higher risk of sexual victimization the next year). Children with four or more types of victimization in Year 1 ("poly-victims") were at particularly high risk of persisting poly-victimization. Persisting poly-victimization was more likely for children who scored high on anger/aggression and who had recent life adversities. Desistence from poly-victimization was associated with having more good friends. Onset of poly-victimization in Year 2, in contrast to persistence from Year 1, was associated with violent or maltreating families, family problems such as alcohol abuse, imprisonment, unemployment and family disruption. Having more older siblings acted as both a risk factor and a protective factor for different groups of youth. CONCLUSION: Children previously victimized in 1 year are at higher risk of continued victimization, and the poly-victims are at particular risk. These findings suggest the potential merit of identifying these high-risk children and making them priority targets for prevention efforts.