Detailed Answer
Correct answer: (C)
Level 4
"Level 4" evaluation, or assessment of results, is often referred to as the epitome of good training evaluation. It makes sense that changes in organizational outcomes are the "ultimate criterion" of success in training. Results include such outcomes as productivity and quality improvements, decreases in inventory or factory downtime, increases in customer satisfaction or in-store sales, enhancements to the bottom line of the organization, and so forth.
Because of the difficulty of establishing cause-and-effect linkages in Level 4 evaluation, it has been widely suggested that organizations take an ROI (return on investment) approach to evaluating training effectiveness. Here the benefits of training are estimated as best as possible and converted into a dollar measure.
