SPSS.pptx

Statistical Package for Social Science Software for Statistical Operations

1. SPSS Dr. Irfan ul Haq AKhoon

2. What is SPSS Software Package used for Statistical Analysis of data. One of the most popular statistical packages which can perform highly complex data manipulation and analysis with simple instructions SPSS used to stand for “ Statistical Package for the Social Sciences ” Later changed to “ Statistical Product and Service Solutions ” Dr. Irfan ul Haq AKhoon

3. Introduction to SPSS SPSS is a comprehensive and flexible statistical analysis and data management solution Computer program used for survey authoring and deployment, data mining, text analytics, statistical analysis, and collaboration It can take data from almost any type of file and use them to generate tabulated reports, charts , plots of distributions & trends, descriptive statistics, and conduct complex statistical analyses . SPSS is among the most widely used programs for statistical analysis in social science. Dr. Irfan ul Haq AKhoon

4. SPSS software SPSS is a commercial software developed by Norman H. Nie and C. Hadlai Hull of SPSS Inc. in the year 1968 . Acquired by IBM in 2009, Now known as IBM-SPSS Statistics Current version is 22.0 Statistic 17.0 (basic package) is freely available for students It is compatible with Windows, Linux, UNIX & Mac operating systems. Dr. Irfan ul Haq AKhoon

5. SPSS software Several specialized packages include: SPSS Data Collection (for surveys) SPSS Modeler (for data mining) SPSS Analytic Catalyst (for Big data) etc. Basic format is .SAV Supports other common formats such as .XLSX, .CSV, .DAT etc SPSS syntax file (.SPS) can be used to convert other formats to SPSS format Dr. Irfan ul Haq AKhoon

6. Features It is easy to learn and use . It includes a full range of data management system and editing tools . It provides in-depth statistical capabilities. It offers complete plotting, reporting and presentation features Very rich collection of Statistical tests and methods Outputs an extensive set of metrics and statistically important factors 24x7 Support available Dr. Irfan ul Haq AKhoon

7. Drawbacks Expensive (at least, not free !) Basic Package is not tailored for Data Mining . Heavy software Dr. Irfan ul Haq AKhoon

8. Uses of SPSS Telecommunications, Banking , Finance , Insurance , Healthcare , Manufacturing , Retail , Consumer packaged goods, Higher education, Government , Market research Dr. Irfan ul Haq AKhoon

9. Entering Data in SPSS The data editor offers a simple and efficient spreadsheet like facility for entering data and browsing the working data file. This window displays the content of the data file . One can create new data files or modify existing ones . This editor provides two views of the data, DATA VIEW: Displays the actual data values or defined value labels. VARIABLE VIEW: Displays variable definition information, including defined variable and value labels, data type, etc., Dr. Irfan ul Haq AKhoon

10. 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 Dr. Irfan ul Haq AKhoon

11. Basic Summaries Data Editor Data View Variable View File/Save Variable definition Name Type Width Decimals Label Values Missing Columns Align Measure Dr. Irfan ul Haq AKhoon

12. Scales of Measurement Nominal Scale - groups or classes : objects or people are categorized according to some criterion Gender Job Category Ordinal Scale - order matters: Categories which are ranked according to characteristics Ranks (top ten videos) income- low , moderate , high Interval Scale - difference matters : contain equal distance between units of measure- but no zero Temperatures (0F, 0C), Likert Scale calendar years Ratio Scale - Ratio matters – has a natural zero value and consistent intervals Salaries distance, weight Dr. Irfan ul Haq AKhoon

13. The basic analysis of SPSS Frequencies This analysis produces frequency tables showing frequency counts and percentages of the values of individual variables . Descriptive This analysis shows the maximum, minimum, mean, and standard deviation of the variable. Linear regression analysis Linear Regression estimates the coefficients of the linear equation Dr. Irfan ul Haq AKhoon

14. Graphical Representation Pie chart - a circle having a “slice of the pie” for each category. The size of a slice corresponds to the percentage of observations in the category Bar chart - displays a vertical bar for each category. The height of the bar is the percentage of observations in the category Dr. Irfan ul Haq AKhoon

15. Graphical Representation Line Chart: Histogram: Really just a bar chart that displays “ Num of Cases” only Click “Display Normal Curve” to inspect if your distribution deviates from normal Dr. Irfan ul Haq AKhoon