Dr. Grayson is interested in studying the relationship between weight loss and mood. To conduct the study, Dr. Grayson analyzes the results of several previous studies on weight loss and emotional state. Which research strategy is Dr. Grayson using

Meta-analysis

Explanation:

Meta-analysis is the statistical analysis combination of results from multiple scientific studies. It's usefulness can be seen when multiple research is done on the same question which various individual or researchers bringing the results of their study. Its a quantitative and epidemiological study design applied to systematically assess results from previous research in order to get a conclusion from them all to drive a conclusion.

This is the research strategy Dr. Grayson is using

the answer is       political office  

hope this .

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.