Wave
Hearing the term wave might bring images of water moving toward shore. Waves in statistical analysis are similar to those of the ocean. Just like crests (highs) and troughs (lows) in examining patterns of moving water, waves are cycles of data analysis that extend in time for individuals (students) or groups of individuals (families or schools). A crest would represent when researchers are gathering data. A trough would represent a break in data collection. As such, waves are repeated measures of data collection. Statisticians collect data over multiple repeated measures in time because they are often interested in addressing research questions about human development or historical change. Sections that follow include examples of research studies where waves are used, important statistical considerations in the analysis ...
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Reader's Guide
Descriptive Statistics
Distributions
Graphical Displays of Data
Hypothesis Testing
Important Publications
Inferential Statistics
Item Response Theory
Mathematical Concepts
Measurement Concepts
Organizations
Publishing
Qualitative Research
Reliability of Scores
Research Design Concepts
Research Designs
Research Ethics
Research Process
Research Validity Issues
Sampling
Scaling
Software Applications
Statistical Assumptions
Statistical Concepts
Statistical Procedures
Statistical Tests
Theories, Laws, and Principles
Types of Variables
Validity of Scores
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