AP PSYCHOLOGY

Detailed explanation-1: -While there are a number of different research techniques available, the experimental method is one that allows researchers to look at cause-and-effect relationships.

Detailed explanation-2: -Answer and Explanation: The only research method that can determine whether a cause-effect relationship exists between two factors is called a(n) experiment.

Detailed explanation-3: -Experimental research, often called true experimentation, uses the scientific method to establish the cause-effect relationship among a group of variables that make up a study.

Detailed explanation-4: -The use of a controlled study is the most effective way of establishing causality between variables. In a controlled study, the sample or population is split in two, with both groups being comparable in almost every way. The two groups then receive different treatments, and the outcomes of each group are assessed.

Detailed explanation-5: -While it is difficult to establish cause-and-effect relationships conclusively with any research design, laboratory experiments offer the greatest potential for inferring causal relationships.