Table 14 Results of exploratory factor analysis for driverless system (n = 504).

From: Elucidation of user autonomous driving system preference mechanisms under the extension of internal and external factors

Dimension

Items

KMO

Bartlett sphere test

Factor Loading

Commonality

Eigenvalue

Total variation explained (%)

US

US1

0.721

0

0.855

0.731

2.223

74.103

US2

0.866

0.750

US3

0.861

0.752

PS

PS1

0.710

0

0.838

0.703

2.132

71.079

PS2

0.844

0.713

PS3

0.847

0.717

ER

ER1

0.701

0

0.817

0.667

2.079

69.305

ER2

0.838

0.702

ER3

0.843

0.710

UDH

UDH1

0.714

0

0.845

0.715

2.166

72.188

UDH2

0.851

0.724

UDH3

0.853

0.727

EE

EE1

0.707

0

0.832

0.693

2.113

70.448

EE2

0.839

0.703

EE3

0.847

0.717

TS

TS1

0.705

0

0.843

0.710

2.097

69.897

TS2

0.832

0.693

TS3

0.833

0.694

SC

SC1

0.712

0

0.844

0.713

2.145

71.512

SC2

0.850

0.722

SC3

0.843

0.711

ASS

ASS1

0.713

0

0.846

0.716

2.155

71.841

ASS2

0.847

0.718

ASS3

0.849

0.721

EF

EF1

0.716

0

0.845

0.714

2.216

73.862

EF2

0.857

0.735

EF3

0.876

0.767

SF

SF1

0.712

0

0.854

0.729

2.157

71.891

SF2

0.836

0.698

SF3

0.854

0.729

CUI

CUI1

0.716

0

0.849

0.722

2.184

72.808

CUI2

0.848

0.719

CUI3

0.863

0.744

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