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Table 7 Regression analysis for intrapersonal variability (WPSS) of the number of trips per day (Monday-Friday)

From: Variability in daily activity-travel patterns: the case of a one-week travel diary

Variable

Coef.

Std. Err.

t-value

P > |t|

Worker

8.242

12.455

0.66

0.508

Student x male

-41.535

4.698

-8.84

0.000

Housewife x male

-46.284

5.971

-7.75

0.000

Pensioner x male

-46.897

5.053

-9.28

0.000

Worker x male

-44.276

2.520

-17.57

0.000

Student x age < 15

-37.323

11.609

-3.22

0.001

Worker x age < 15

-41.480

28.407

-1.46

0.145

Student x age15_25

-34.137

11.227

-3.04

0.002

Housewife x age15_25

-15.010

14.022

-1.07

0.285

Worker x age15_25

-20.817

14.380

-1.45

0.148

Student x age25_55

-22.243

28.372

-0.78

0.433

Housewife x age25_55

-10.438

13.035

-0.8

0.424

Pensioner x age25_55

21.364

25.613

0.83

0.405

Worker x age25_55

-21.021

14.694

-1.43

0.153

Housewife x age55_65

-0.500

13.696

-0.04

0.971

Pensioner x age55_65

-2.424

5.455

-0.44

0.657

Worker x age55_65

-13.947

14.743

-0.95

0.344

Student x density

0.000

0.001

0.45

0.653

Housewife x density

0.001

0.001

1.02

0.306

Pensioner x density

0.000

0.001

-0.38

0.703

Worker x density

0.000

0.000

-0.13

0.901

Student x driving_license

6.178

6.234

0.99

0.322

Housewife x driving_license

1.946

7.303

0.27

0.790

Pensioner x driving_license

3.473

7.878

0.44

0.659

Worker x driving_license

2.896

5.071

0.57

0.568

Housewife x single_with_child

3.101

18.400

0.17

0.866

Worker x single_with_child

9.701

9.505

1.02

0.308

Housewife x single_no_child

-44.908

8.344

-5.38

0.000

Pensioner x single_no_child

-51.241

11.493

-4.46

0.000

Worker x single_no_child

-15.564

3.560

-4.37

0.000

Student x couple_with_child_one_worker

24.059

27.622

0.87

0.384

Housewife x couple_with_child_one_worker

-10.105

12.124

-0.83

0.405

Worker x couple_with_child_one_worker

-7.098

11.207

-0.63

0.527

Housewife x couple_with_child_two_worker

-10.297

8.826

-1.17

0.244

Worker x couple_with_child_two_worker

-1.866

3.192

-0.58

0.559

Housewife x couple_no_child_no_worker

4.490

10.803

0.42

0.678

Pensioner x couple_no_child_no_worker

3.451

9.561

0.36

0.718

Worker x couple_no_child_no_worker

0.759

12.143

0.06

0.950

Housewife x couple_no_child_one_worker

-6.508

8.348

-0.78

0.436

Pensioner x couple_no_child_one_worker

4.877

11.301

0.43

0.666

Worker x couple_no_child_one_worker

0.690

6.365

0.11

0.914

Constant

90.017

10.186

8.84

0.000

Number of obs

696

   

Source

SS

df

MS

 

Model

438,582.41

41

10,697.13

 

Residual

387,613.80

654

592.68

 

Total

826,196.21

695

1188.77

 

F(41, 654)

18.05

   

Prob > F

0.0000

   

R-squared

0.53

   

Adj R-squared

0.50