Using the nonexperimental method, a researcher collects data on exercise and anxiety from a number of people and finds that exercise is negatively related to anxiety—that is, the people who exercise more tend to have lower levels of anxiety. What does this scenario demonstrate? Temporal precedence Covariation between variables Elimination of possible causes Non-sufficient element of inference of cause

This scenario demonstrates "COVARIATION BETWEEN VARIABLES".

Explanation: Covariation between variables is how two variables are interrelated. It shows if two variables are inversely or directly proportional.

Non-experimental research only show how two variables are interrelated, which means that Covariation between variables describes non-experimental research. In an non-experimental research, the research does not accurately determine cause, rather it projects the relationship between the choose variables.

In this research, the researcher collected data on exercise and anxiety, this means the researcher wants to correlate the two variables.

not  

cuba  

russia  

iraq  

el salvador  

explanation:

known as the land of volcanoes, el salvador has visit seismic tremors and volcanic movement. it is the main nation in central america that does not have a coastline on the caribbean sea. about portion of all salvadorans live in the wide open. they are poor and don't have power or running water in their homes. in 1525, pedro de alvarado, a lieutenant of cortés's, vanquished el salvador. el salvador, with alternate nations of central america, pronounced its freedom from spain on sept. 15, 1821, and was a piece of a league of central american states until the point when that association broke up in 1838.