This study aims to develop an instrument that measures democratic attitudes levels in primary school students in third and fourth grades. This study involved 591 students (302 for exploratory factor analysis, 289 for confirmatory factor analysis) enrolled in the 3rd and 4th grades. A literature review was conducted to prepare the scale items, and…

High-quality measurement tools are critical to school improvement efforts. Education researchers frequently employ surveys in order to assess a host of variables associated with school improvement. This article asserts that Rasch modeling techniques enhance the quality of a measurement tool because they comprise elements of both qualitative and…

Scientific reasoning abilities are already developing in elementary-school-aged children and enable them to understand the world around them. The goal of the current study was to develop a new instrument for 8- to 10-year-old children in Grades 3 and 4 to measure their understanding of the steps of the "scientific inquiry cycle" (SIC).…

Lack of validated research tools in Spanish-speaking countries has limited the extent to which educational research can expand. In recent years, there has been a growing interest in the exploration of affective factors in reading. The need for research on reading and reading motivation in Latin American countries calls for valid, reliable tools to…

Identifying which early mathematics skills have the largest effects on later mathematics achievement has important implications. However, regression-based estimates often rely on untested assumptions: (a) Scores on different mathematics skills reflect unique constructs, and (b) other factors affecting early and later mathematics achievement are…

This study addresses whether reading involves a process termed semantic and phonological ability to adjust recoding (SPAAR). It was hypothesized that SPAAR helps readers link inaccurate pronunciations to lexical entries (e.g., "spynitch" to "spinach"). Psychometric properties of the Mispronunciation Correction Task (MCT), a…

This study aims to develop a short German version of the Self Description Questionnaire (SDQ I-GS) in order to present a robust economical instrument for measuring German preadolescents' multidimensional self-concept. A full German version of the SDQ I (SDQ I-G) that maintained the original structure and thus length of the English original SDQ I…