Early in life, children are not capable of filling out a complete questionnaire or talking to an interviewer.
When a baby is born prematurely, this baby and his or her parents often experience a rough start. You can think about eating problems, high risk of infection, or even anemia.
Structured observations are one of the many ways to gather data. Observing behavior rather than asking questions about it can provide you with a multitude of valuable information.
Controlled conditions and accurate data recording are key in scientific success and a stationary lab provides these controlled conditions while allowing scientists to observe test participants unobtrusively.