A Study of Consent Forms for Whole Exome and Whole Genome Sequencing

Background: The purpose of this study is to investigate the process of consenting participants to whole exome/genome sequencing and its outcomes. It is unknown how best to consent people to this new technology. NO GENOME SEQUENCING IS OFFERED AS PART OF THIS STUDY. This protocol is a companion to other NIH studies that involve genomic sequencing. Participants must be enrolled in a parent NIH study that is collaborating on this consent study to be eligible. Currently this involves only one NIH study. Objectives: \- To learn the best way to help participants understand sequencing, so they can decide whether to join studies that use it. Eligibility: * Adults at least 18 years old who are enrolled in a National Institutes of Health (NIH) study that uses WES/WGS. * Adults at least 18 years old whose children are enrolled in an NIH study that uses WES/WGS. Design: * Participants will take part in the study either in person or over the phone. * Participants will review two sequencing consent forms with a genetic counselor. * Before and after meeting with the counselor, participants will answer several questions about sequencing. Each questionnaire will take about 15 minutes. * Six weeks later, participants will answer questions about sequencing. This will take about 15 minutes.