Both methods can be used, however, some require more time and others are more reliable. Indirect methods rely on others to collect data. Indirect methods consist of surveys, questionnaires completed by caregivers, parents or teachers. By using direct observation, one can observe and collect data without affecting the client's environment. The environmental factor is that Sam's behavior occurs in the bathroom of his house. Direct observation allows behavior analysts to see behavior occurring. This also helps avoid any recording errors. Direct observation can be considered as simple as parsimony because it seems clear and simple. Additionally, videotaping is another way to use direct observations. This method is reliable and testable. The method that will be used for Sam is direct observation. Sam's behavior will be observed by a train observer and filmed. Sam will be observed for a period of one week. Sam's target behavior is defined as (breaking down) crying, screaming, and throwing himself on the floor. Additionally, direct observations can ensure that data is collected correctly. This reinforces the validity and necessity of functional task analysis.