This report includes five documents, three on child care research, and two concerning individual differences and discriminative abilities in newborn and young infants. "The Organization of Infant Day Care Environments: Feedback-Produced Improvements in Staff Job Performance" reports on the effectiveness of monitoring procedures as corrective feedback for four infant care duties. "Open-Environment Design for Infant and Toddler Day Care" studies the environment of day care centers, demonstrating that an open environment facilitates supervision and small group activities. "Menus for Toddler Day Care! Food Preference and Spoon use" describes a measurement system for determining toddler food preference. "American and Uruguayan Infants: Reliabilities, Maternal Drug Histories and Population Differences Using the Brazelton Scale" assesses the behavior of 44 infants from birth to one month using Brazelton's Neonatal Assessment Scale. "Evaluation of Early Development with the Brazelton Scale--Effects of Obstetrical Medication" studies 44 infants analyzing the results in two ways: (1) consistencies, changes, and organization over the first month; (2) relation between behavior patterns of newborns and pain-relief drugs, including general anesthesia, administered to the Mothers during labor and delivery. Tables charted for each observational day show correlations between Brazelton items, state of the infant, patterns of infant behavior, and obstetrical drugs. (JH)