Which type of research provides the strongest evidence about the existence of cause-and-effect relationships?
1). nonexperimental Research
2). experimental Research
3). survey Research
4). physical supernatural l Research
2. Which of the following statement matches with that of Mouly?
3. Which of the following must a researcher have?
5. In an experiment, the dependent variable
6. Quality of research depends on
8. The interview in which questions are already prepared is called ........