Social scientists routinely address temporal dependence by adopting a simple technical fix. However, the correct identification strategy for a causal effect depends on causal assumptions. These need to be explicated and justified; almost no studies do so. This article addresses this shortcoming by offering a precise general statement of the…

Purpose: In a previous article, we reported that beginning treatment for regular past tense "-ed" with certain types of verbs led to greater generalization in children with developmental language disorder than beginning treatment with other types of verbs. This article provides updated data from that study, including the addition of data…

The 4 experiments reported here used the preferential looking and habituation paradigms to examine whether 5-month-olds possess a perceptual template for snakes, sharks, and rodents. It was predicted that if infants possess such a template, then they would attend preferentially to schematic images of these nonhuman animal stimuli relative to…

In this report, we present an analysis of two prospective secondary mathematics teachers' generalizing actions in quantitative contexts. Specifically, we draw from a teaching experiment to report how Lydia and Emma engaged in different generalizing processes for the same task. Based on these differences, we found Lydia's generalizing actions…

We perform dynamic investigation of two surprising geometrical properties, each of which involves additional properties. In the first task the property belongs to two regular polygons with the same number of sides and with one common vertex. It is found that all the straight lines that connect corresponding vertices of the two polygons intersect…

The ability to generate narratives is important for literacy development. Children with autism spectrum disorder (ASD) have been found to generate less complex narratives than typically developing peers. This pilot AB study was designed to investigate the efficacy of a brief intervention procedure to develop the macrostructure of original…

Vygotsky considered vraschivaniya, or 'ingrowing', an indispensable stage in the 'internalization' of meaning and described three different ways this could happen. But were these different ways options or substages? By logico-semantic analysis of Vygotsky's notebooks and published texts, and by recontextualizing them historically, I show that what…

Academic dishonesty has been growing in both digital and analog settings. The present study aimed to generalize the ethical dissonance index (EDI), which was established in a sample of Israeli school students as the gap between the pervasiveness of academic dishonesty and its perceived legitimacy. Furthermore, the study examined how technology,…

Educational design research provides opportunities for both the theoretical understanding and practical explanations of teaching. In educational design research, mathematics teachers' learning is essential. However, research shows that little consideration is given to teachers and the participation of teachers throughout the entire design process…

The present study evaluated the efficacy of a set of procedures for bringing tact extensions of abstract tactile properties under stimulus control. Two participants with disabilities who communicated via a picture-based communication system received reinforcement for tacts of tactile properties of four wet/dry and four hard/soft stimuli. Test…

The basic form of the superlative suffix in German is -"st (kleinst"-), with some adjectives requiring a longer form, -"est (lautest"-). While the superlative has long been a topic in teaching materials, the accuracy of textbook treatments continues to be less than satisfactory. The difficulty arises in characterizing the…

This article provides a validation framework for research on the development and use of science Learning Progressions (LPs). The framework describes how evidence from various sources can be used to establish an interpretive argument and a validity argument at five stages of LP research--development, scoring, generalisation, extrapolation, and use.…

In this study, the author examined student attempts to translate a verbal problem into an algebraic statement relating two variables, after they had solved an arithmetic question from the same problem. A total of 645 students from New England (U.S.A.) answered the problem on a mathematics assessment administered at the beginning of the school…

This article provides a validation framework for research on the development and use of science Learning Progressions (LPs). The framework describes how evidence from various sources can be used to establish an interpretive argument and a validity argument at five stages of LP research--development, scoring, generalisation, extrapolation, and use.…

Periodically, articles reporting research on student ratings of instruction (SRI), aka student evaluations of teaching, appear in the higher-education press. This literature often summarizes studies that challenge the validity and reliability of SRI. However, before drawing a conclusion about a quantitative study touted in the media, readers…