_____ regulates maternal behavior in lower mammals

Which of the following statements is TRUE?

a. Encoding is a secondary feature of our ability to remember information. b. Adding knowledge always enhances recall. c. Encoding is the process of getting information out of long-term memory. d. How we encode information bears little relation to remembering that information later. e. Humans are able to encode information without attending to it at all.

When conducting survey research, why would one need to make sure the sample is "stratified"?

a. Because random sampling is problematic b. To correspond properly to ethnographic research c. As a symbol of quantitative investigations d. To fairly represent the population of interest