Credibility, attractiveness, and likability all relate to which factor of persuasion?

Vlad receives $100 for every ten telemarketing calls he makes. This is an example of a reinforcement

a. fixed ratio b. variable ratio c. fixed interval d. variable interval e. 100/10schedule of

In the gestures-as simulated-actions framework, which is not a factor that determines whether a gesture occurs?

a. the strength of the simulated action c. memory b. the gesture threshold d. speech