Validity and Reliability Testing on Train Driver Performance Model Using a PLS Approach

Jalil Azlis-Sani,Norhayati Zakuan,Siti Zawiah Md Dawal

doi:10.4028/www.scientific.net/aef.10.361

Abstract

The purpose of this paper is to explain the assessment of validity and reliability of measured items used in survey research. The structural equation modeling techniques and Partial Least Square (PLS) will be adopted to assess the goodness of measures of constructs used in a model to examine the performance of the Malaysian train drivers. The measurement process involves assessment of construct validity of the items and followed by convergent validity. Then, the composite reliability was assessed with internal consistency measure of Cronbachs alpha. Lastly, discriminant validity was tested to assess the validity of the measurement. The constructs are not supposed to measure other constructs or overlapping constructs.

Highlights

Human performance.Performances are related to the job or task assigned to the operators unless it is conducted fully automatic by machines or robots
Most of industries still depend on their human operators including railway, where locomotives are still operated by the train drivers
Investigations on human performance factors were conducted and influences the overall performance measurement and study ranging from the air traffic control system, design process at the factories, train driving activities and ship navigation [2,3,4,5]

Summary

Introduction

Human performance.Performances are related to the job or task assigned to the operators unless it is conducted fully automatic by machines or robots. Human factors was left behind and be considered as independent factors with very less contribution to the overall system performance[1]. Researchers conducted their studies on individual variable to measure performance, factors affecting performance and effect of performance; either on individual level or organizational level. Investigations on human performance factors were conducted and influences the overall performance measurement and study ranging from the air traffic control system, design process at the factories, train driving activities and ship navigation [2,3,4,5]. The structural equation modeling techniques and Partial Least Square (PLS) will be adopted to assess the goodness of measures of constructs used in a model to examine the performance of the Malaysian train drivers

Current Trends in Ergonomics

Research Method

Measurement item

Findings

Safety Work environment