A (teaching efficacy) can be personal.Logical formLearned from7 sentences. A decrease can be in efficacy.Logical formLearned from7 sentences. An efficacy can be observed.Logical formLearned from7 sentences. An efficacy may pertain-to initiatives.Logical formLearned from7 sentences. An efficacy may pertain-to a message.Logical formLearned from7 sentences. A belief can be in an efficacy.Logical formLearned from7 sentences. Perception can be in a mode of efficacy.Logical formLearned from7 sentences. (Treatment efficacy) may undergo an evaluation.Logical formLearned from7 sentences. An efficacy can be instrumental.Logical formLearned from7 sentences. Issues can be constituted-of-or-filled-with efficacy.Logical formLearned from7 sentences. An efficacy may pertain-to teaching.Logical formLearned from7 sentences. An efficacy may pertain-to a (death penalty).Logical formLearned from7 sentences. An efficacy can be desired.Logical formLearned from7 sentences. Officers may believe in an efficacy of a strategy.Logical formLearned from7 sentences. A number of countries may question an efficacy of a policy.Logical formLearned from7 sentences.