Analisa Multivariat  October 17, 2009Posted by desrinda in Analisa Multivariat.
– Histogram and The Normal Curve
– Stem and Leaf Diagram
– Scatter Plot
– Systematic (affected by researcher or respondent)
– Random (occurs naturally)
Researcher’s concern = to identify the patterns and relationships underlying the missing data.
Outlier = distinctively different data (can be identified by box plot), probably caused by:
– Procedural error
– Extraordinary event
Multivariate testing assumptions:
– Normality (e.g. normal probability plot)
– Non correlated errors
Data can be transformed, dummy variable can be created. Multicollinearity (http://www.nd.edu/~rwilliam/stats2/l11.pdf) should be avoided.