Wat zijn enkele karakteristieken van een adequate theorie?

1. basic metasystem should be clear; 2. type of theoretical construct to be included in the theory shoul dbe explained and justified in relation to their empircal meanings; 3. The derivation of hypotheses from the assumptions should be demonstrated to have been done according to accepted rules of logic; 4. Operational definitions of terms used in the hypotheses should be provided, the construct validity of resulting variables should be justified, and evidence of reliabilities should be offered; 5. The empirical evidence bearing on the hypotheses should be presented; 6. The theory should be reexamined in light of the evidence and revised if necessary.