Final answer:
It is not specified in the study how many organizations collect data on training outcomes, but it is suggested that a multi-faceted approach to measurement is necessary for evaluating the effectiveness of training.
Step-by-step explanation:
According to the study by Arthur et al. (2003), it is estimated that organizations consider various training outcomes when evaluating the effectiveness of their training programs. The outcomes include the immediate response of the employee, test results at the end of training, supervisor observations of behavioral changes, and business results such as productivity and profits. While the study does not specify the exact percentage of organizations that collect data on these outcomes, it implies that effective measurement is multidimensional, covering reactions, learning, behavior, and results.