Sylvia had been working as an executive assistant to the president for nearly 25 years, so when she retired, no one had a good idea of all that her job entailed. Before Sylvia retired, Meaghan sat with her for two weeks to observe her duties and ask her to explain all the functions she performs as executive assistant to the president. Meaghan was performing a(n)

Penny poodle wanted to know which dog obedience training program was more effective: puppy pride, the approach she has been using for any years, or doggie do-right, a new approach. penny convinced 50 human companions of untrained dogs to participate in her study. the dogs and their humans were randomly assigned to complete the puppy pride or doggie do-right course. at the end of the training programs, all of the dogs were scored on their level of obedience on a standardized dog obedience checklist (scores could range from 10 to 100). the design of this study is: