In a previous correlational study, Dr. Lafayette has found that owning dogs is associated with lower levels of daily stress in a sample of returning war veterans. Which of the following would constitute a shift from theory-testing mode to generalization mode? A. Conducting a study on the same sample of war veterans, this time using a different measure of stress.
B. Conducting a study examining the stress reduction in dogs.
C. Conducting an experimental study in which he assigns people to own a dog or not.
D. Conducting a study on dog ownership using a sample of elderly participants from a local retirement home.

D). Conducting a study on dog ownership using a sample of elderly participants from a local retirement home.

Explanation:

Theory-testing mode aims to assess the association and causal claims in order to look for support for a theory. Hence, it lays more emphasis on external validity instead of internal rationality. While the generalization mode focuses on generalizing the findings discovered from distinct samples and procedures of the study to a wider context or population.

As per the question, the 'conductance of a study on dog ownership through a sample of elderly participants from a local retirement home' exemplifies that the theory-testing model is being shifted to generalization mode as it is trying to generalize the findings(from samples) by associating it to a wider context(population). Thus, option D is the correct answer.

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.