According to Bayesian theories in psychology and neuroscience, minds and brains are (near) optimal in solving a wide range of tasks. We challenge this view and argue that more traditional, non-Bayesian approaches are more promising. We make 3 main arguments. First, we show that the empirical evidence for Bayesian theories in psychology is weak.…

Statements conveying a degree of certainty or doubt, in the form of hedging, have been linked with logical inference in students' talk (Rowland, 2000). Considering the current emphasis on increasing student autonomy for effective mathematical discourse, I posit a relationship between hedging and student autonomy. In the current study, high school…

The purpose of this study was to examine Turkish English as a Foreign Language Learners' (EFL) handling of unknown words while reading English texts. The study also examines the relationship between these learners' perceptions and actual practices in the employment of knowledge sources while trying to guess the meaning of unknown words. The…

Students' informal inferential reasoning (IIR) is often inconsistent with the normative logic underlying formal statistical methods such as Analysis of Variance (ANOVA), even after instruction. In two experiments reported here, student's IIR was assessed using an intuitive ANOVA task at the beginning and end of a statistics course. In both…

The vast majority of second language (L2) vocabulary research focuses on learners' knowledge of isolated word forms. However, it is unclear to what extent this knowledge can be used as an indicator of knowledge in context (i.e. reading and listening). This study aims to shed light on this issue by comparing ESL learners' knowledge of the meaning…

Despite the widespread popularity of growth curve analysis, few studies have investigated robust growth curve models. In this article, the "t" distribution is applied to model heavy-tailed data and contaminated normal data with outliers for growth curve analysis. The derived robust growth curve models are estimated through Bayesian…

This study examined the use of an all multiple-choice (MC) anchor for linking mixed format tests containing both MC and constructed-response (CR) items, in a nonequivalent groups design. An MC-only anchor could effectively link two such test forms if either (a) the MC and CR portions of the test measured the same construct, so that the MC anchor…

As the emphasis on accountability in education increases, so does the prevalence of low-stakes testing. It is essential to understand test-taking motivation in low-stakes contexts, as low motivation has implications for the validity of inferences made from test scores about examinee knowledge and ability. The current study expanded upon previous…

The use of large-scale assessments for making high stakes inferences about students and the schools in which they are situated is premised on the assumption that tests are sensitive to good instruction. An increase in the quality of classroom instruction should cause, on the average, an increase in test scores. In work with a number of colleagues…

Background: This study investigates children's ability to generate inferences from narratives containing counterfactual information. Methods: 39 typically developing readers (mean age 10; 05) completed an on-line task in which they were asked to read short passages, followed by sentences which they had to judge as true or false. The sentences…

Purpose: In this study, the authors examined the ability of preschoolers with Williams syndrome (WS) or Down syndrome (DS) to infer communicative intent as expressed through gestures (pointing and eye-gaze shift). Method: Participants were given a communicative or noncommunicative cue involving pointing or gaze shifting in the context of a hiding…

Text comprehension plays a fundamental role in the processes of acquisition, sharing, and construction of knowledge. Most definitions share the focus on the interaction between text and reader's prior knowledge. In this paper both direct and indirect effects of prior knowledge on reading comprehension have been analyzed, along with other…

Standardized parameter estimates are routinely used to summarize the results of multiple regression models of manifest variables and structural equation models of latent variables, because they facilitate interpretation. Although the typical standardization of interaction terms is not appropriate for multiple regression models, straightforward…

This address was given as the final-day keynote of the Sixth International Drama in Education Research Institute (IDIERI) in Sydney, 2009. Using the Institute's title as his theme, O'Toole briefly surveys the growth of drama education research of the last two decades, and the changing landscape of practice and research. He then conducts an…

Donald Campbell's approach to causal inference (D. T. Campbell, 1957; W. R. Shadish, T. D. Cook, & D. T. Campbell, 2002) is widely used in psychology and education, whereas Donald Rubin's causal model (P. W. Holland, 1986; D. B. Rubin, 1974, 2005) is widely used in economics, statistics, medicine, and public health. Campbell's approach focuses on…