Who was the founder of rationalism?

If you check an Internet service for important world news, you could find a major event at any time, unpredictably. Which type of schedule of reinforcement is this?

a. Fixed-interval b. Variable-interval c. Fixed-ratio d. Variable-ratio

Jeffrey is a con artist who swindled his own grandmother out of her life savings. He shows no remorse and claims it was her own fault for being so gullible. Jeffrey exhibits the characteristics of __________ personality disorder

a. schizoid c. avoidant b. schizotypal d. antisocial