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Full-Text Articles in Quantitative Psychology
Modeling Change Over Time: Conceptualization, Measurement, Analysis, And Interpretation, David Chan
Modeling Change Over Time: Conceptualization, Measurement, Analysis, And Interpretation, David Chan
Research Collection School of Social Sciences
The objective of this research report is to provide a state-of-the art review of the issues and methods relating to the modeling of change over time. The focus is on the quantitative assessment of the concept of change of time, which includes issues of conceptualization, measurement, data analysis, and interpretation. The rationale and motivation for this research originated from the author?s observations (specifically in the past decade in the capacities of journal editor, reviewer, symposium discussant, and workshop leader) on the need for a comprehensive and relatively non-technical reference on and integration of various issues in the modeling of change …
Agreement Answer Scale Design For Multilingual Surveys: Effects Of Translation-Related Changes In Verbal Labels On Response Styles And Response Distributions, Ana Villar
Survey Research and Methodology (SRAM) Program: Dissertations and Theses
Answer scales in survey instruments are widely used, but little is known about how to choose verbal descriptors as labels. In multilingual research, this matter is further complicated because answer scales must be appropriate for all languages and function comparatively. Comparing source questionnaires to translations of multinational projects (e.g., the World Values Survey, the European Social Survey), it was observed that certain verbal features differed across languages, countries, and modules. This dissertation empirically investigates the effect of such changes on response distributions. The verbal feature examined is the presence or absence of an intensity modifier in the second and fourth …
Nonlinear Dynamics Of Infant Sitting Postural Control, Joan E. Deffeyes
Nonlinear Dynamics Of Infant Sitting Postural Control, Joan E. Deffeyes
Department of Psychology: Dissertations, Theses, and Student Research
Sitting is one of the first developmental milestones that an infant achieves. Thus measurements of sitting posture present an opportunity to assess sensorimotor development at a young age, in order to identify infants who might benefit from therapeutic intervention, and to monitor the efficacy of the intervention. Sitting postural sway data was collected using a force plate from infants with typical development, and from infants with delayed development, where the delay in development was due to cerebral palsy in most of the infants in the study. The center of pressure time series from the infant sitting was subjected to a …