Which of the following statements is true of Solomon four-group evaluation design? Pre-training outcomes are completely ignored. It is mainly used by companies that are uncomfortable with excluding certain employees or that intend to train only a small group of employees. It combines both pre-test/post-test comparison group and post-test-only/control group designs. Relative to the other evaluation designs, it is more economical and takes less time to conduct.

As the inventor of hypertension medication, onesure pharmaceuticals (osp) inc. was able to reap the benefits of economies of scale due to a large consumer demand for the drug. even when competitors later developed similar drugs after the expiry of osp's patents, regular users did not want to switch because they were concerned about possible side effects. which of the following benefits does this scenario best illustrate? a. first-mover advantages b. social benefits c. network externalities d. fringe benefits