Behavioral Parenting Skills As A Novel Target for Improving Pediatric Medication Adherence

INCLUSION: * Parent of a child diagnosed within the past month with acute lymphoblastic leukemia (ALL) * Pediatric patient's age 3 - 9. \* If present during the home visit, any other child, ages 0-18 * Child on therapy that includes oral mercaptopurine (6-MP) administration * Parent age 18 - NA (No Limit) * Parent should have verbal English fluency * Participant must understand the investigational nature of this study and sign an Independent Ethics Committee/Institutional Review Board approved written informed consent form prior to receiving any study related procedure * The following special populations may be included in this study: * Pregnant women: due to the design of this behavioral research, pregnant and fetuses should incur no elevated risk from participation. Children under age 18 will participate in one aspect of the study, the video recording of medication administration. \* Other children (not the pediatric patient) under age 18 that are present during the time of the home visit Exclusion: * Pediatric patient is on therapy that does not include oral 6-MP administration * Cognitively impaired adults/adults with impaired decision-making capacity * Pediatric patients who are not yet adults (infants under the age of 3, children over 9 years, teenagers) * Prisoners