What are three types of controlled experiments?

Three types of controlled experiments include laboratory experiments, field experiments, and field trials. Laboratory experiments are conducted in a controlled environment, allowing researchers to isolate variables and observe effects with precision. Field experiments take place in natural settings, offering insights into real-world applications while still manipulating independent variables. Field trials, often used in agriculture or medicine, assess the effectiveness of treatments or interventions in a real-world context, typically with larger sample sizes.