# Basic data analysis - PowerPoint PPT Presentation

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Basic data analysis. The basic analysis of SPSS that will be introduced in this class . Frequencies This analysis produces frequency tables showing frequency counts and percentages of the values of individual variables. Descriptives

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Basic data analysis

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## Basic data analysis

### The basic analysis of SPSS that will be introduced in this class

• Frequencies

• This analysis produces frequency tables showing frequency counts and percentages of the values of individual variables.

• Descriptives

• This analysis shows the maximum, minimum, mean, and standard deviation of the variables

• Linear regression analysis

• Linear Regression estimates the coefficients of the linear equation

### Frequencies

• Click ‘Analyze,’ ‘Descriptive statistics,’ then click ‘Frequencies’. The sample file employee.sav is used in this demonstration

Click

Click

### Frequencies

• Click gender and put it into the variable box.

• Click ‘Charts.’

• Then click ‘Bar charts’ and click ‘Continue.’

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### Frequencies

• Finally Click OK in the Frequencies box.

Output view

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### Descriptives

• Click ‘Analyze,’ ‘Descriptive statistics,’ then click ‘Descriptives…’

• Click ‘Educational level’ and ‘Beginning Salary,’ and put it into the variable box.

• Click Options

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Click

### Descriptives

• The options allows you to analyze other descriptive statistics besides the mean and Std.dev

• Click ‘variance’ and ‘kurtosis’

• Finally click ‘Continue’

### Descriptives

• Finally Click OK in the Descriptives box. You will be able to see the result of the analysis.

### Practice 4

Do a frequency analysis on the variable “minority”

Create pie charts for it

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### Descriptives

• Click ‘Analyze,’ ‘Descriptive statistics,’ then click ‘frequencies…’

• Click ‘minority’ and put it into the variable box.

• Select pie chart under chart type.

• Select frequencies and continue.

Click

Use demo.sav file (sample folder)

Choose chart builder

Click gallery tab

click on bar

Drag the stacked bar icon onto the canvas

Select – employment category on Y-axis

gender on X axis

Use demo.sav file (from sample folder)

Choose chart builder

Click gallery tab

click on bar

Drag the stacked bar icon onto the canvas

Select variables– employment category Y-

gender X axis

Use demo.sav file (from sample folder)

Choose chart builder

Click gallery tab

click on bar and

Drag the simple bar icon onto the canvas

Select – variable job satisfaction and right click on it to change measure to ordinal. Then drag onto X axis

Select – variable household income and drag onto y axis

See statistic change to mean from count.

### Creating charts

Use employee data.sav file (from sample folder)

Choose chart builder

In choose from list select scatter/dot

Drag the simplest scatter plot diagram onto the canvas

Select – variable Beginning salary then drag onto X axis

Select – variable Current salary and drag onto y axis

Click on OK button

Here you have a simple scatter plot showing the effect of starting salary on current salary.