Question

what is experimental investigation?????¿¿​

Answer 1

Answer:

hey....

Explanation:

here are three main types of investigations: descriptive, comparative, and experimental. ... Experimental investigations involve a process in which a "fair test" is designed and variables are actively manipulated, controlled, and measured in an effort to gather evidence to support or refute a causal relationship.

Answer 2

Answer:

There are three main types ofinvestigations: descriptive, comparative, and experimental. ...Experimental investigations involve a process in which a "fair test" is designed and variables are actively manipulated, controlled, and measured in an effort to gather evidence to support or refute a causal relationship.