bg statistical package for social sciences spss 3 1 1553

• Menu Analyze\ Reports\ Case Summaries Quantitative variables Grouping variables Choose two functions: Choose Mean & Number of case... 3.1.2 Split file • Menu Data\ Split file •

Chapter 3 PRESENTATION AND SUMMARY DATA –

(Descriptive statistics)

Chapter 3 PRESENTATION AND SUMMARY DATA –

(Descriptive statistics)

3.1 Some basic features

3.2 The descriptive statistics table

3.3 Graphs in SPSS

3.1.1 Table Case Summaries

• Calculate the average value for each sub-group),

uncheck the Display Cases

• Menu Analyze\ Reports\ Case Summaries

Quantitative

variables

Grouping

variables

Choose two functions:

Choose Mean &

Number of case

3.1.2 Split file

Menu data \ Split file

Grouping data when performing the

statistical report

3.1.2 Split file

• Menu Data\ Split file

• Select Compare groups : Comparing groups in a table

• Putting grouping variables through the "groups based

on"

• Click Ok

3.1.2 Split file

• Menu Data\ Split file

• Select organize output by groups: Comparison groups

in separate tables

• Putting grouping variables through the "groups based

on"

• Click Ok

3.1.2 Split file

Results

3.1.2 Split file

Results

3.1.3 Select cases

• Selection of small groups based on

specific conditions to perform statistical tables

3.1.5 Coding variable

• Often used to codingquantitative variables into

qualitative variables Sometimes also coding

qualitative variables have multiple values ​​into

qualitative variables of little value

• Transform \ Recode into Same Variables: Coding data

on current variable

• Transform \ Recode into Different Variables: Coding

data on other variables

3.1.6 Count Values within Cases

• Count values ​​in the answer

• Menu Transform \ Count Values within Cases

3.1.8 Replace Missing Values

• Replace the missing values ​​in the data used for

quantitative variables

• Menu Transform \ Replace Missing Values

3.1.9 Automatic recode

• A method of automatically coding the string

values ​​into numbers, create a new variable

• For example, you can type the string variables gender

(male, female), encoding a variable number of type (1: male, 2 female)

• Menu Transform \ Automatic recode…

3.1.10 Visual Binning

• Create categorical variables from a variable Scale

• Menu Transform \ Visual Binning…

• For example, the age variable is quantitative

variables coded into age groups

• Group 1: from 18-25

• Group 2: from 26-35

• Group 3: from 36-45

• Group 4: from 46-60

3.1.10 Visual Binning

3.1.11 Weight Cases

• Increase the sample size

• Create a new variable (w1), enter the number into

• Menu Data \ Weight cases \ select w1 put in the box

Frequency variable \ OK

3.1.12 Insert data from excel

• File \ Open \ Data…

• Select the Excel file

3.1.13 Add cases

• How to insert data (data) from one file to another

file same

• Must have two identical files of data

• Data \ Merge Files \ Add cases \ OK

3.2 The descriptive statistics table

3.2.1 Frequencies tables

3.2.2 Descriptives tables

3.2.3 Explore tables

3.2.4 Custom tables

3.2.1 Frequencies tables

• Used for qualitative and quantitative variables

• Menu Analyze > Descriptive Statistics > Frequencies…

Ý nghĩa của các hệ số

3.2.2 Descriptives tables

• only be calculated for quantitative variables If we

calculate this quantity for qualitative variables, the results will not be statistically significant

3.2.2 Descriptives tables

• Be used for quantitative variables or combination of

quantitative and qualitative variables

• Test the normal distribution

3.2.3 Explore tables

• Be used for quantitative variables or combination of

quantitative and qualitative variables

• Test the normal distribution

3.2.3 Explore tables

NHẬN BIẾT PHÂN PHỐI CHUẨN TRONG SPSS

 Dùng phép kiểm định Kolmogorov

– Smirnov khi cỡ mẫu lớn hơn 50

hoặc phép kiểm Shapiro - Wilk khi

cỡ mẫu nhỏ hơn 50 Được coi là có

phân phối chuẩn khi mức ý nghĩa

(Sig.) lớn hơn 0,05

Trích theo: TS Nguyễn Ngọc Rạng

• A table that is used to run for the qualitative and

quantitative variables, running tables combined with other variables

• Menu Analyze\ Tables\ Custom tables

3.2.4 Custom tables

• Processing multiple answer question

• Menu Data\ Define Multiple Response Sets…

3.2.4 Custom tables

3.3 Graphs in SPSS

• Graph data used to describe the shape of painting studies help users easily observe the variability of the data

3.3 Graphs in SPSS

• Menu Graphs\ Chart Builder…

• Menu Graphs\ Lagacy Dialogs…

3.3 Graphs in SPSS

3.3.1 Qualitative variables

• Menu Graphs\

Chart Builder…

Percentage()

Show data labels

Fill & Border

• Data value labels

• Suppress overlapping labels

Number Format

Categories

3.3 Graphs in SPSS

3.3.2 Combined with qualitative variables

Total For Each legend variable category (Same fill color)

Right-click\ Colomn Panel Zone \ Add

Total For Each Panel

3.3 Graphs in SPSS

3.3.3 Quantitative variables

Function: mean

Number Format

Click on the vertical axis and then select the scale

Press the button Options… and then choose: Exclude

variable by variable to maximize the use of data

3.3 Graphs in SPSS

3.3.4 Combined with qualitative variables

combined

Press the button Options… and then choose: Exclude

variable by variable to maximize the use of data

Right-click\ Colomn Panel Zone \ Add

Press the button Options… and then choose: Exclude

variable by variable to maximize the use of data