Statistical package for social scienceScientific researchPresented to : Dr. Basma Damiri
OutlineSPSS definition .History of statistics Uses and importance .Topics of statisticaldata analysis.
History of statistics Statistical package for social sciences 1968
Uses of SPSS Data collection and organization. Data output. statistical testes.
Before the data entry You need a code book/scoring guide. You also can use Excel to do data entry.
Enter data in SPSS6Columns:variablesRows: casesUnderData View
Enter variables71. Click thisWindow1. Click Variable View2. Type variable name underName column (e.g. Q01).NOTE: Variable name can be 64bytes long, and the firstcharacter must be a letter orone of the characters @, #, or$.3. Type: Numeric, string, etc.4. Label: description of variables.2. Typevariable name3. Type:numeric orstring4. Descriptionof variable
Enter cases9Under DataView1. Two variables in the data set.2. They are: Code and Q01.3. Code is an ID variable, used to identify individualcase (NOT people’s real IDs).4. Q01 is about participants’ ages: 1 = 12 years oryounger, 2 = 13 years, 3 = 14 years…
Data review before statisticalanalysis To ensure that the data that entered to thecomputer is correct and complete we have toreview important problems :1. Outliers .2. Missing data. Exclude cases pairwise. Replacing missing data.3. Normal distribution .