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2
Introduction to Nonparametric Statistics
Chapter 1 presented an introduction to research. The basic principles of
research and planning for research were discussed, along with explanations
of various types of research designs. Information about sampling procedures,
different kinds of probability and nonprobability samples, and calculating
sample sizes were included. Considerations for the validity and reliability of
research instruments were described. Finally, steps in the research process
were delineated with explanations of each step.
A solid research design is necessary to provide a basis for trustworthy
results of an analysis. Otherw