AP PSYCHOLOGY

Detailed explanation-1: -A correlational research design investigates relationships between variables without the researcher controlling or manipulating any of them. A correlation reflects the strength and/or direction of the relationship between two (or more) variables. The direction of a correlation can be either positive or negative.

Detailed explanation-2: -Correlation is a statistical technique that is used to measure and describe a relationship between two variables. Usually the two variables are simply observed, not manipulated. The correlation requires two scores from the same individuals.

Detailed explanation-3: -Correlational research involves measuring two variables and assessing the relationship between them, with no manipulation of an independent variable.

Detailed explanation-4: -Correlational research is research designed to discover relationships among variables and to allow the prediction of future events from present knowledge.

Detailed explanation-5: -Correlational research attempts to determine how related two or more variables are. This degree of relation is expressedas a correlation coefficient. For example, a researcher may way to wish to determine the relationship between cardiorespiratory fitness and self-esteem in college females.