How many degrees of freedom is in a t-test for two independent samples of 15 people?

When encouraged to eat their fill of Eminem's, people eat more when given a larger bowl rather than a small bowl. This most clearly reflects.

A) neophobia B) a set point C) social facilitation D) unit bias

In Kuhl and colleagues' study on infant recognition of vowel sounds, Swedish infants were

found to pay __________ attention to __________ vowel sounds than to __________ vowel sounds. a. more; English; Swedish b. less; English; Swedish c. more; German; French d. less; Finnish; Swedish e. more; Swedish; Finnish