Marlee's right eardrum was punctured in an accident when she was three years old. She is deaf in her right ear, but is helped with a hearing aid that amplifies sound waves. What type of deafness does Marlee have?

Amanda, an emergency medical technician, examines an infant whose babysitter reported that he stopped breathing after falling off of a couch where she had laid him for a nap

Amanda resuscitates the baby but, on the way to the hospital, notices that there is also bleeding in the retinas of the baby's eyes and no obvious bump on the outside of the baby's skull. She suspects that the baby is a victim of a. Sudden infant death syndrome b. Failure to thrive c. Anencephaly d. Shaken baby syndrome

An experimenter conducts a program of research to determine what types of messages are most effective in promoting condom use among adolescents. How would you classify this type of research?

a. primary research b. secondary research c. basic research d. applied research