Truong Thi Hoa, Ph D 1 By the end of this chapter, students should be able to üunderstand steps of analyzing data quantitatively üunderstand some basic functions of SPSS üuse SPSS to prepare data for[.]
Truong Thi Hoa, Ph.D By the end of this chapter, students should be able to: üunderstand steps of analyzing data quantitatively üunderstand some basic functions of SPSS üuse SPSS to prepare data for analysis and analyze data preliminary ütest the reliability and validity of measurements using SPSS ütest research model and hypotheses using SPSS Preparing data for analysis Descriptive statistics Inferential statistics Testing the measurements Testing research model and hypotheses SPSS (Statistical Package for Social Sciences): Designed for management and data analysis of Social Science data Often used to manage and analyze primary data collected using questionnaires § Open SPSS: - click on SPSS icon, or: - Start/Program/ SPSS inc/ SPSS… (Window) - Launchpad -> IBM ->SPSSStatistics (Macbook) § Menu § Data input: - Data view: Data - Variable view: Variable description § Output: Analysis results § Open a data file: § File/ Open/ Data click on the data file; or, § Click on Open icon (1); or, § Double click on the data file § Save a data file: (Save, Save as) § File/ Save (Save as)/ § Choose a folder § Name the datafile Variable view: Name: name of var (short, no space) Type: numeric, string, etc Width: number of digits Decimals: number of digits after decimal point Label: brief definition of var Value: coded categorical variables Missing: Defined value treated as missing Columns: Width of columns Align: The alignment of content Measure: level of measurements (nominal, Scale, Ordinal) Role: Input (Independent var), target (dependent var), both Data View (1) Variable: each column of cells show a variable (2) Case (Observation): each row of cells show a case Each respondent is represented as a case (3) Value: a cell 1.1 Inputting data Open SPSS -> New dataset -> (Variable View and Data View) Always have a variables that show IDs of the respondents (exp: stt, id) (Notes the id on the collected questionnaire) Inputting variable details -> Inputting data ØOpen question: Exact content ØClosed questions Coding data -> Inputting data Value Exp: Thu nhập 999 Label Dưới trđ 2-4 trđ 4-6 trđ 6-10 trđ Trên 10 trđ Không biết 1.1 Inputting data Inputting data using the existing file (Excel, Stata, etc.) Note: proper structure of data Example: File -> Import data -> (Choose the format) -> Excel Practice Inputting data using nhapdulieu.xls file -> Save as sav file -> Submit online (utex or fhqx) 10 2.2 Cross tabulation tables (Bảng tần số đa biến) For two categorical variables Analyze -> Descriptive statistics -> crosstab 18 2.2 Cross tabulation tables (Bảng tần số đa biến) For two categorical variables Interpreting results (1): (2): (3): (4): 19 2.2 Cross tabulation tables (Bảng tần số đa biến) For three categorical variables Analyze -> Descriptive statistics -> crosstab 20 2.2 Cross tabulation tables (Bảng tần số đa biến) For three categorical variables 21 vFormat table: Double click on result table -> Pivot Transpose row and column Pivot tray vExport results table Click on the tables -> File -> Export (All, all visible, selected) 22 2.2 Cross tabulation tables (Bảng tần số đa biến) For categorical variable and numerical variables Analyze -> Table -> Custom table 23 2.2 Cross tabulation tables (Bảng tần số đa biến) For categorical variable and numerical variables 24 2.3 Tables for multiple responses set Define multiple response set Analyze -> Table -> Multiple Response Sets 25 2.3 Tables for multiple responses set Analyze -> Table -> Custom table 26 2.4 Graphs Graph -> Legacy dialogs -> choose type of graphs 27 2.4 Graphs Graph -> Legacy dialogs -> choose type of graphs 28 2.4 Graphs Graph ->Chart builder 29 2.4 Graphs Graph ->Chart builder 30 Working with your data Øinputting data Øcleaning data Øgenerate descriptive statistics 31 Hoàng Trọng Chu Nguyễn Mộng Ngọc (2008) Phân tích liệu nghiên cứu với SPSS NXB Hồng Đức 32 ... tần số đơn biến) and descriptive statistics (Đại lượng thống kê mô tả) Descriptive statistics (Đại lượng thống kê mô tả) (numerical variables) Analyze -> Descriptive statistics -> Descriptive 16... -> Sort cases ØUsing descriptive (for numerical) Analyze -> Descriptive statistics -> Descriptive ØUsing frequency tables (bảng tần số đơn biến) (for categorical) Analyze -> Descriptive statistics... üunderstand steps of analyzing data quantitatively üunderstand some basic functions of SPSS üuse SPSS to prepare data for analysis and analyze data preliminary ütest the reliability and validity