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Introduction to the SPSS Interface

Introduction to the SPSS Interface. Dr. Mohammed Alahmed Ph.D. in Biostatistics alahmed@ksu.edu.sa (011) 4674108. Contents. SPSS interface: Data view and Variable view How to enter data in SPSS How to import external data into SPSS How to clean and edit data

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Introduction to the SPSS Interface

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  1. Introduction to the SPSS Interface Dr. Mohammed Alahmed Ph.D. in Biostatistics alahmed@ksu.edu.sa (011) 4674108

  2. Contents • SPSS interface: • Data view and Variable view • How to enter data in SPSS • How to import external data into SPSS • How to clean and edit data • How to get descriptive statistics

  3. SPSS interface • Data view • The place to enter data • Columns: variables • Rows: records • Variable view • The place to enter variables • List of all variables • Characteristics of all variables

  4. Enter data in SPSS directly

  5. Example: Hospital-stay data

  6. Columns: variables Rows: cases Under Data View

  7. Enter Variables • Click Variable View • Type variable name under Name column (AGE). • NOTE: Variable name can be 64 bytes long, and the first character must be a letter or one of the characters @, #, or $. • Type: Numeric, string, etc. • Label: description of variables. 2. Type variable name 4. Description of variable 3. Type: numeric or string 1. Click this Window

  8. Enter variables Based on your code book!

  9. Enter cases

  10. Import data from Excel • Select File Open Data • Choose Excel as file type • Select the file you want to import • Then click Open

  11. Open Excel files in SPSS

  12. Continue Save this file as SPSS data

  13. Clean data after import data files • Run cases summaries for all variables • Run frequency for qualitative variables and Descriptives for quantitative variables • Check outputs to see if you have variables with wrong values. • Check missing values and physical surveys if you use paper surveys, and make sure they are real missing. • Sometimes, you need to recode string variables into numeric variables

  14. cases summaries

  15. Basic Statistical Analysis • Descriptive statistics: • Find wrong entries • Have basic knowledge about the sample and targeted variables in a study • Summarize data.

  16. Qualitative Variables Analyze Descriptive statistics Frequency

  17. Quantitative Variables Analyze Descriptive statistics Descriptives

  18. AGE Box-Plot Histogram

  19. Duration of Stay Histogram Box-Plot

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