According to the Progress in International Reading Literacy Study (PIRLS), internationally girls' verbal skills are at a more advanced level than boys

Intuitively, it seems that spacing out instances of a given concept or rule would make it ______ to learn the concept/rule. Research conducted by Kornell and Bjork _______ this intuition, revealing that ______ repetitions led to better learning

a) more difficult; supports; massed b) more difficult; refutes; spaced c) easier; supports; massed d) easier; refutes; spaced

By 3 years old, infants who suffered from early brain lesions

a. had still not developed verbal abilities, coordination, and visual spatial abilities. b. had caught up to their healthy peers in verbal ability, coordination, and visual spatial ability. c. showed poor performance on tests of verbal ability, coordination, and visual spatial ability. d. varied significantly in their verbal ability, coordination, and visual spatial ability.