A(n) ________ serves to guide our processing of information and may serve to distort memories

When a research team selected participants for a study of mother-infant play, they chose a socioeconomically and racially/ethnically diverse sample. By doing this, the researchers will increase their study's

a. viability b. reliability c. internal validity d. external validity

Studies of gaze following have found that

a. before the age of 8 months, infants who follow another person's gaze toward an object do not learn about the object because they focus on the other person instead of looking at the object b. by 14 months of age, infants begin to understand the role of the eyes in attending to the environment c. as early as 6 months of age, infants understand that they will see the same sight as another person whose gaze and head movement they are following d. infants on the autism spectrum have more advanced gaze following abilities than typically developing infants