In the past, researchers found many training design factors (such as identical elements, general principles, stimulus variability and conditions of practices) that influence the transfer of training in the workplace. Thorndike and Woodworth (1901) highlighted the concept of identical elements and argued that the transfer can be maximized if training has more identical elements. Thorndike and Woodworth (1901) highlighted the concept of identical elements and argued that the transfer can be maximized if training has more identical elements. With reference to stimulus variability, Ellis (1965) argued that transfer is maximized when a variety of relevant training stimuli are employed.