Cahlil is angry at his mother but, rather than taking his anger out directly on her, he takes it out on his younger sister. Cahlil's behavior exemplifies

Syphilis can be transmitted in all of the following ways, EXCEPT

A) contact with open lesions of an infected person. B) from mother to fetus. C) through skin abrasions during sexual contact. D) touching objects an infected person has had contact with.

A repeated-measures study comparing two treatments with a sample of n = 4 participants produces MD = 3 with SS = 48 for the set of difference scores. What is the repeated-measures t statistic for these data?

a. 3/?3 = 1.73 c. 3/4 = 0.75 b. 3/2 = 1.50 d. 3/16 = 0.19