Metric error monitoring in the numerical estimates

Recent studies have shown that participants can keep track of the magnitude and direction of their errors while reproducing target intervals (Akdoğan & Balcı, 2017) and producing numerosities with sequentially presented auditory stimuli (Duyan & Balcı, 2018). Although the latter work demonstrated that error judgments were driven by the number rather than the total duration of sequential stimulus presentations, the number and duration of stimuli are inevitably correlated in sequential presentations. This correlation empirically limits the purity of the characterization of “numerical error monitoring”. The current work expanded the scope of numerical error monitoring as a form of “metric error monitoring” to numerical estimation based on simultaneously presented array of stimuli to control for temporal correlates. Our results show that numerical error monitoring ability applies to magnitude estimation in these more controlled experimental scenarios underlining its ubiquitous nature.     

The Role of Racial Discrimination in the Economic Value of Education Among Urban,Low-Income Latina/o Youth: Ethnic Identity and Gender as Moderators

The present study used resilience theory to explore relationships among perceived racial discrimination, ethnic identity, gender, and economic value of education (EVE) among urban, low‐income, Latina/o youth. It was expected that racial discrimination would predict poorer perceptions of the EVE among Latina/o adolescents. Ethnic identity was hypothesized to buffer the negative effect of racial discrimination on Latina/o students’ EVE. The participants in this study were 396 urban, low‐income Latina/o high school students from a large, Midwestern city who completed surveys in both 9th‐ and 10th‐grade. Structural equation modeling was used to test the relationships among racial discrimination, ethnic identity, and EVE. Results supported a protective model of resilience. Specifically, ethnic identity served as a protective factor by buffering the negative effect of perceived racial discrimination on EVE for male participants. The present study is the first to examine ethnic identity as a buffer of racial discrimination on EVE among Latina/o high school students. Future directions and implications are discussed.     

International Semiotics: Item Difficulty and the Complexity of Science Item Illustrations in the PISA-2009 International Test Comparison

We examined multimodality (the representation of information in multiple semiotic modes) in the context of international test comparisons. Using Program of International Student Assessment (PISA)-2009 data, we examined the correlation of the difficulty of science items and the complexity of their illustrations. We observed statistically significant mean correlation coefficient differences favoring higher-ranking over lower-ranking jurisdictions and non-Western over Western jurisdictions. We examined this correlation as a function of the variety of forms of representation of information used in illustrations. For the highest-ranking jurisdictions, the correlation tended to be positive and its magnitude tended to increase with the number of forms of representation. For the lowest-ranking jurisdictions, the correlation tended to be negative and its magnitude tended to increase with the number of forms of representation. Increased illustration complexity appears to be an affordance in making sense of science items for students from the highest-ranking jurisdictions and a challenge for students from the lowest-ranking jurisdictions. Our findings support the notion that integrating information provided in multiple semiotic modes is critical to science achievement and underscore the importance for science standards and international assessment frameworks to address this skill as intrinsic to (rather than an aspect of) science proficiency.     

A model of saccadic landing positions in reading under the influence of sensory noise

During reading, saccadic eye movements are produced to move the high acuity foveal region of the eye to words of interest for efficient word processing. Distributions of saccadic landing positions peak close to a word's centre but are relatively broad compared to simple oculomotor tasks. Moreover, landing-position distributions are modulated both by distance of the launch site and by saccade type (e.g., one-step saccade, word skipping, refixation). Here we present a mathematical model for the computation of a saccade intended for a given target word. Two fundamental assumptions are related to (1) the sensory computation of the word centre from inter-word spaces and (2) the integration of sensory information and a priori knowledge using Bayesian estimation. Our model was developed for data from a large corpus of eye movements from normal reading. We demonstrate that the model is able simultaneously to account for a systematic shift of saccadic mean landing position with increasing launch-site distance and for qualitative differences between one-step saccades (i.e., from a given word to the next word) and word-skipping saccades.     

Degrees of resilience: profiling psychological resilience and prospective academic achievement in university inductees

University inductees may be increasingly vulnerable to stressors during transition into higher education (HE), requiring psychological resilience to achieve academic success. This study aimed to profile inductees' resilience and to investigate links to prospective end of year academic outcomes. Scores for resilience were based on a validated Connor Davison Resilience Scale (CD-RISC) drawn from 1534 inductees in a single UK university. A four-stage analysis revealed that incremental resilience was more facilitative of females' prospective academic attainment, but less functional and more convoluted for males. This large, distinctive study has implications for student support practices and highlights that the relationship between resilience and academic achievement requires further consideration in HE.     

青少年早期学业成就的同伴团体社会化:感知学校氛围的调节作用

通过对1275名初一青少年开展为期半年的追踪调查,考察了同伴团体对青少年早期个体学业成就的影响,及感知学校氛围对这种影响的调节作用。结果表明:(1)在控制学校虚拟变量、年龄、性别、同伴团体规模及个体前期学业成就之后,所在班级前期的平均学业成就能显著预测个体后期学业成就;(2)同伴团体的学业成就能正向预测个体后期的学业成就变化,但班级相对于同伴团体的情境效应不显著。(3)在个体和同伴团体水平,感知学校氛围各维度不能显著预测个体后期学业成就,但同伴团体平均学业成就与该团体整体感知到的教师支持的交互项可以正向预测个体学业成就间隔半年后的变化。     

Dissociation between magnitude comparison and relation identification across different formats for rational numbers

ABSTRACT

The present study examined whether a dissociation among formats for rational numbers (fractions, decimals, and percentages) can be obtained in tasks that require comparing a number to a non-symbolic quantity (discrete or else continuous). In Experiment 1, college students saw a discrete or else continuous image followed by a rational number, and had to decide which was numerically larger. In Experiment 2, participants saw the same displays but had to make a judgment about the type of ratio represented by the number. The magnitude task was performed more quickly using decimals (for both quantity types), whereas the relation task was performed more accurately with fractions (but only when the image showed discrete entities). The pattern observed for percentages was very similar to that for decimals. A dissociation between magnitude comparison and relational processing with rational numbers can be obtained when a symbolic number must be compared to a non-symbolic display.