Controlled observation occurs when observational research is carried out under carefully arranged conditions. Each subject is exposed to the same situation, to see differences between individual reactions.
For example, a group of babies may be exposed, one at a time, to a laboratory situation called stranger approaches. A stony-faced stranger approaches the mother and http://atlantapoolinstallation.com/ takes the baby out of her arms. Around the age of 7-8 months, some babies seem to find this very alarming. Some cry even at the sight of an approaching stranger. However, not all babies go through this “stranger anxiety” phase. Researchers can test hypotheses about what factors make stranger anxiety more or less likely by testing a variety of mother/baby pairs. The controlled setting and carefully arranged conditions allow researchers to compare reactions of different children.