Incomplete or missing data is a common problem in almost all areas of empirical research. It is well known that simple and ad hoc methods such as complete case analysis or mean imputation can lead to biased and/or inefficient estimates. The method of maximum likelihood works well; however, when the missing data mechanism is not one of missing…

This paper focuses on developing students' informal inference skills, reporting on how a group of third grade students formulated and evaluated data-based inferences using the dynamic statistics data-visualization environment TinkerPlots[TM] (Konold & Miller, 2005), software specifically designed to meet the learning needs of students in the…

The relations among several alternative parameterizations of the binary factor analysis model and the 2-parameter item response theory model are discussed. It is pointed out that different parameterizations of factor analysis model parameters can be transformed into item response model theory parameters, and general formulas are provided.…

This is an interpretive case study seeking to develop detailed and comparative descriptions of how two groups of fifth-grade students used two different Computer-based Programming Environments (CPEs) (namely Microworlds Logo and Stagecast Creator) during scientific modelling. The primary sources of data that were used in this 4-month study include…

Although literature is available on the theoretical models of consultation underpinning service delivery in educational psychology services, little research has been published on the application of these models to educational psychologist (EP) consultation practice with teachers in schools. This study explores the espoused theory of consultations…

Verbal report protocols have been considered as direct representations of individual cognitive processes. The present study examined the social nature of verbal reports, particularly focusing on whether and in what ways concurrent think-aloud (TA) protocol data are recipient-designed. The results of this study suggest that verbal reports elicited…

This article provides the theory and application of the 2-stage maximum likelihood (ML) procedure for structural equation modeling (SEM) with missing data. The validity of this procedure does not require the assumption of a normally distributed population. When the population is normally distributed and all missing data are missing at random…

This study examines ways of approaching deductive reasoning of people involved in mathematics education and/or logic. The data source includes 21 individual semi-structured interviews. The data analysis reveals two different approaches. One approach refers to deductive reasoning as a systematic step-by-step manner for solving problems, both in…

Noteworthy progress has been made in the development of statistical models for evaluating the structure of vocational interests over the past three decades. It is proposed that historically significant interest datasets, when combined with modern structural methods of data analysis, provide an opportunity to re-examine the underlying assumptions…

Using the International School Psychology Survey (ISPS), this study aims to advance our knowledge of the characteristics, training, roles and responsibilities, challenges and research interests of school psychologists around the world by comparing recent international data. The current study contributes valuable information regarding the…

The purpose of this phenomenological study was to explore through in-depth analysis of interviews of perceptual change and what trainers of "A Framework for Understanding Poverty" to educators have learned about themselves, about poverty in the United States, about children of poverty, and about those who work with students of poverty. A…

This qualitative study examines the writing and writing experiences of six bilingual (Spanish-English), immigrant university students. Immigrant students are a growing segment of university populations, but explicit/implicit language policies often overlook their unique characteristics and needs. The study draws on the continua of biliteracy model…

Issues surrounding female participation in graduate theological education are complex and multifaceted. One important problem concerning female theological students is the lack of research exploring the experiences and unique challenges faced by conservative evangelical female Master of Divinity (M. Div.) students as they pursue academic and…

Software metrics are measures of software products and processes. Metrics are widely used by software organizations to help manage projects, improve product quality and increase efficiency of the software development process. However, metrics programs tend to have a high failure rate in organizations, and developer pushback is one of the sources…

The purpose of this study was to explore the evolution science content used during college students' negotiation of biology-based socioscientific issues (SSI) and examine how it related to students' conceptual understanding and acceptance of biological evolution. Specific research questions were, (1a) what specific evolutionary science content do…