01+Data,+Central+Tendency,+&+Dispersion

=Monday, January 03, 2011=

Thinking About Data
· Levels of measurement · Distributions

Describing Distributions: Central Tendency and Dispersion
· Calculation and properties · Frequency distributions · Graphical representation o Histogram, kernel density plot, boxplot, dotplot, stem-and-leaf plot

Using a Statistical Software Application—Stata
· Introduction, starting the software and understanding the user interface · Reading raw data and Stata datasets · Using the menus to learn Stata · Basic commands to produce statistics and manipulate data: o describe, list o tabulate, summary, tabstat, means, proportion o generate, replace, and recode § arguments and options: if, in, over · Data structure o Flat file structure o long versus wide

Readings
Central Tendency: [] Comparing Measures of Central Tendency: [] Measures of Variability: [] Central Tendency - Mean Median Mode Range - YourTeacher.com: [] Visualization article: []? Histograms: Construction, Analysis and Understanding: [] Dot Plots A Useful Alternative to Bar Charts – BeyeNETWORK: [] Stem and Leaf Plot [|www.statcan.ca/english/edu/power/ch8/plots.htm] Stata Class Notes: [] Entering Data: [] Exploring Data: [] Modifying Data: [] Managing Data: [] Analyzing Data: [] General Information: []