Transcript of "Chapter 8 Data analysis and interpretation ( 2007 book )"
Date Analysis and Interpretation
- It may be defined as the examination of
data or fact in terms of quantity, quality,
attribute, trait, pattern, trend, relationship
among others so as to answer research
questions which involve statistical
techniques and procedures.
- Tests a single variable to determine
whether the sample is similar to the
population from which it has been
-Tests two variables on how they
differ with each other.
- Statistical tool
Correlation coefficient – use in both descriptive and
Z test – descriptive research only.
T-test – experimental only.
-Tests three or more independent variables at
a time in the degree of relationship with the
• Also known as “MANOVA”.
• This examine several variable and their
• In contrast to bivariate analysis which examine
relationship between 2 variables, and univariate
analyses where one variable at a time is
examined for generalization from the sample to
• MANOVA test means differences among groups
across several dependent variables
simultaneously, by using sums of squares and
cross product matrices.
• In MANOVA test the independent variable is
measured on a nominal scale and the
dependent variables on an interval or ratio