Following the correct procedure of latent construct measurement is a key step to get reliable empirical research results. Three key steps of latent construct measurement often neglected by transportation psychologists-theoretical background, construct definition and measurement model specification, are addressed. This study indicates the importance of these three steps by drawing on Critical Realism and Epistemic Correlation. A total of 33 relevant articles with 182 latent constructs published in Transportation Planning Journal Quarterly and Journal of the Chinese Institute of Transportation during 2001 to 2012 are inspected to see whether their latent constructs were designed properly. The study results show that 58.2% of the constructs are implanted with western theories; 26.4% of which have no theoretical background. 51.6% of the definitions of constructs are given by western research; 31.9% of which lacks definition. 26.4% of the constructs are not properly manipulated due to inconsistency between construct definition and validation. The importance of designing latent constructs discreetly is emphasized and some useful conclusions and suggestions are also raised for reference.