Manipulation checks are an essential component of quality experimental design in motor learning. Guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses framework, this methodological systematic review examined the utilization of manipulation checks in focus of attention research. Seventy-eight protocols from four…

This paper reports how I addressed the issue of extensive missing values in my PhD study, "Digital Competencies of High School Mathematics Teachers". I collected data using an online survey. Several methods exist to address the issue of missing values. I utilised multiple imputation (MI) as it provides more accurate results. The mean…

In undergraduate research settings, students are likely to encounter anomalous data, that is, data that do not meet their expectations. Most of the research that directly or indirectly captures the role of anomalous data in research settings uses post-hoc reflective interviews or surveys. These data collection approaches focus on recall of past…

Assesses techniques used by researchers to collect and analyze data on how people with visual impairments or blindness learn, understand, and think about geographic space. Recommendations are made for increasing the validity of studies, including the use of multiple, mutually supportive tests; larger samples; and real-world environments.…

With increasing reliance being placed on the results of their surveys, the National Center for Education Statistics (NCES) recognized a need for these survey results to be valid and reliable. As part of the work of the Statistical Analysis Group in Education (SAGE), an effort was undertaken to investigate validity and reliability in survey…

Explored applicability of the Loevinger conception of ego development for early adolescence and developed a measure of earliest ego levels: Sentence Completion Test for Children and Youth. Found oral administration of test did not yield essentially different responses or significantly differing ego-level scores from the written version, regardless…

The purpose of this paper is to discuss ways in which developmental psychology suffers from the lack of an appropriate technology of measurement and statistical analysis. The paper begins by noting that developmental psychology is the study of change; that individuals develop through a succession of "stages" which are separated by…

This handbook has been prepared to address one specific problem: How can the techniques of program evaluation be effectively applied to produce useful information about the operations and impact of moral education programs in secondary schools? The handbook is divided into five chapters. The introductory chapter describes the background and…