KENTJIFFERPIN KENTJIFFERPIN English Answered 3. Correlational study aims to_______.a. It explores the effectiveness of an intervention employing random selection onlyb. It explores the effectiveness of an intervention employing both random selection and random assignment c. Describe, and interpret, the current status of individuals, settings or phenomenond. Investigate the nature of relationships, or associations between and among variables without necessarily investigating into casual reasons underlying them. 4. Which of the following best describes true-experimental research?a. It explore the effectiveness of an intervention employing random selection onlyb. It explore the effectiveness of an intervention employing both random selection and random assignment c. Investigate the nature of relationships, or associations between and among variables without necessarily investigating into casual reasons underlying them. d. It involves comparing and contrasting two or more groups of the study subjects based on a particular dependent variable.5. Which of the following best describes comparative research?a. It explore the effectiveness of an intervention employing random selectiononlyb. It explore the effectiveness of an intervention employing both random selection and random assignment c. Investigate the nature of relationships, or associations between and among variables without necessarily investigating into casual reasons underlying them. d. It involves comparing and contrasting two or more groups of the study subjects based on a particular dependent variable.