Experimental method involves carefully controlling conditions and manipulating variables to test hypotheses. Key aspects include:
- Controlled conditions allow the investigator to isolate the effects of variables being tested from other potential influences.
- Manipulation involves deliberately introducing, removing, or changing variables to see how a subject or group is affected.
- Variables are categorized as independent variables manipulated by the researcher or dependent variables that are observed to change in response.
- Experiments aim to compare the effects of different treatments or a treatment against no treatment through replication under controlled conditions.