A researcher states the hypothesis that children will be more attentive when they are in a private (vs. a public) setting in the presence of a teacher (vs. a parent). Using a 2 × 2 design, what type of main effect could be predicted by the hypothesis?

Ocean currents that move away from the equator carry warm, moist air and ocean currents that move away from the poles carry cooler, dryer air. based upon this information in the map above, which of the following statements is true? a. the climate on the western coast of south africa is warm and rainy.b. the climate on the eastern coast of south africa is warm and rainy.c. the climate on the eastern coast of australia is cool and dry.d. the climate on the eastern coast of japan is warm and rainy.

This question is based on the following paragraph. tomas tiptoed across the room. he made sure not to walk on the spot that always creaked. he opened the squeaky door as slowly as possible. he took one last look in the crib and smiled. was anything more beautiful than a sleeping baby? softly he closed the nursery door and headed down the hall. it had been a long night. what can you infer from this paragraph? a. tomas was ready to start a new day. b. tomas's house needed some repairs. c. tomas had spent a long time getting his child to sleep. d. tomas did not enjoy being a father.

Why does the united states constitution require that a national census be taken every ten years?