URS 6806: Data Analysis

[Chapters covered: 10,11]

Index construction

            Index is a composite measure of an abstract concept with several dimensions

            Scale is the measure of a single dimension of the abstract concept

Standardized Indicators [these are Indices]

Likert Scaling [a misnomer; this is in reality an Index]

Index Number [e.g. Consumer Price Index]

Univariate Analysis [Analysis of one variable]

            Descriptive vs Inferential Statistics

            Spreadsheets vs Database

            Representation of Data

                        Tables, Graphs (Bar, Histogram, Pie, Line); Maps

            Measures of Individual quantitites

                        Frequency, Percentage, Proportion, Percent change, Ratio, Rate

            Measures of Central Tendency

                        Mode, Mean, Median

            Measures of Dispersion

                        Range; Standard Deviation

            Normal Distribution vs Skewed Distribution