This experiment compared descriptions of concurrent choice by the stay/switch model, which says choice is a function of the reinforcers obtained for staying at and for switching from each alternative, and the generalized matching law, which says choice is a function of the total reinforcers obtained at each alternative. For the stay/switch model…

In his writings on school choice and educational justice, Harry Brighouse presents normative evaluations of various choice systems. This paper responds to Brighouse's claim that it is inadequate to criticise these evaluations with reference to empirical data concerning the effects of school choice.

A new generation of public programs emerges, which specifically addresses complex societal problems we witness today. Programs for these types of complex issues--in this article, we consider more closely the challenge of sustainable development--are characterized by emergent design, learning processes between diverse actors, and adaptive…

The criteria for diagnosing depressive disorders fails to place the symptoms of intense sadness in the context of major losses in life, and separating normal sadness from depressive disorder among adolescents is especially difficult. Suggested modifications to the screening of suicidal ideation among adolescents are also presented.

This study extends the research on asynchronous online discussion (AOD) by providing a perspective on: (1) the growth patterns of discussion threads and (2) the influence of peer- or student-facilitation techniques on thread development. Using the Pointing, Questioning, Resolving and Summarizing (PQRS) facilitation techniques framework, the…

In this article, the author presents the top-10 list of campus computer-security risks he compiled based on several recent computing surveys and interviews with more than a dozen college-technology leaders. The list, ordered from least to most serious, is by no means scientific, but it gives a sense of where today's battle lines are--and why…

We have devised and implemented a module for an upper division undergraduate laboratory based on the amplification and analysis of a p53 polymorphism associated with cancer susceptibility. First, students collected a drop of peripheral blood cells using a sterile sting and then used FTA cards to extract the genomic DNA. The p53 region is then PCR…

Purpose: This study tests empirical predictions of a maturational model for the growth of tense in children younger than 36 months using a type-based productivity measure. Method: Caregiver-child language samples were collected from 20 typically developing children every 3 months from 21 to 33 months of age. Growth in the productivity of tense…

The last 50 years have witnessed enormous strides in the measurement and classification of child and adolescent psychiatric disorders. Debates about whether we should continue to depend upon a categorical nosology still continue, but we argue that, despite the absence of clear dividing lines between psychiatric disorders and normality and ubiquity…

A method is presented for marginal maximum likelihood estimation of the nonlinear random coefficient model when the response function has some linear parameters. This is done by writing the marginal distribution of the repeated measures as a conditional distribution of the response given the nonlinear random effects. The resulting distribution…

This paper puts forward the case that one of the factors constraining principled learning-oriented assessment practices is lack of trust. It examines a number of assessment dimensions in which trust or distrust plays a role. These issues are illustrated via a discussion of two different iterations of the same module taught in a teacher education…

In this article, I propose some new terminology and analytic tools that help us reflect on Israel educational activities with more sophistication. I analyze data from a four-week observation of a Jewish summer camp and new terminology is proposed from the analysis of the data collected during that observation. I argue that we may view Israel…

This article compares and contrasts the main features of dynamic testing and assessment (DT/A) and response to intervention (RTI). The comparison is carried out along the following lines: (a) historical and empirical roots of both concepts, (b) premises underlying DT/A and RTI, (c) terms used in these concepts, (d) use of these concepts, (e)…

In this theoretical paper, I present a short critical review of research on calibration. Based on this conceptual analysis I argue for two extensions of this construct: In addition to traditional applications, the methodology should be transferred to also measure calibration between students' metacognitive control processes (traditionally, only…

The Italian demonstrative pronouns "questo/a" ("this[subscript [mas/fem]]") and "quello/a" ("that[subscript [mas/fem]]") implicitly convey information about objects' distance with respect to the speaker. Our study investigated the referents of "questo/a" ("this[subscript [mas/fem]]") and "quello/a" ("that[subscript [mas/fem]]") by analysing their…