Chi Square Distribution - Basic Statistics for Sociology - Lecture Slides, Slides for Statistics for Psychologists. Shree Ram Swarup College of Engineering & Management

Statistics for Psychologists

Description: Chi Square Distribution, Basic Logic, Terminology, Bivariate Tables, Computation, Five Step Model, Significant Differences, Cell Frequencies, Random Chance, Raw Data are the important key points of lecture slides of Basic Statistics for Sociology.
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Chapter 11
(10 in 2nd Can. Ed.)
Hypothesis Testing Using the
Chi Square (χ2) Distribution
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Outline:
The basic logic of Chi Square.
The terminology used with bivariate tables.
The computation of Chi Square with an
example problem using the Five Step Model
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Basic Logic
Chi Square is a test of significance based on bivariate
tables.
We are looking for significant differences between
the actual cell frequencies in a table (fo) and those
that would be expected by random chance (fe).
The data are often presented in a table format. If
starting with raw data on two variables, a bivariate
table must be created first.
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Bivariate Tables:
Must have a title.
Cells are intersections of columns and rows.
Subtotals are called marginals.
N is reported at the intersection of row and
column marginals.
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