Table 4 Exploratory factor analysis output.

From: Internet of things (IoT) for safety and efficiency in construction building site operations

Variables

Component

Cronbach Alpha

1

2

3

4

IOT-SE12

0.869

   

0.819

IOT-SE09

0.824

    

IOT-SE07

0.668

    

IOT-SE10

0.609

    

IOT-SE13

 

0.822

  

0.795

IOT-SE06

 

0.789

   

IOT-SE03

 

0.664

   

IOT-SE08

  

0.794

 

0.711

IOT-SE15

  

0.761

  

IOT-SE04

  

0.699

  

IOT-SE11

  

0.666

  

IOT-SE01

   

0.765

739

IOT-SE05

   

0.709

 

IOT-SE14

   

0.645

 
  1. “Extraction Method: Principal Component Analysis.”
  2. “Rotation Method: Varimax with Kaiser Normalization.”
  3. “Variable IOT-SE02, IOT-SE16 excluded because of loading less than 0.6.”