Determine what type of observational study is described Can money buy happiness?

Question

Determine what type of observational study is described Can money buy happiness? A researcher wanted to determine whether there was any association between economic status and happiness. She selected a sample of 1000 adults and interviewed them. Each person was asked about their financial situation and their level of happiness was evaluated. The researcher analyzed the results to determine whether there was an association between economic status and happiness. Select one: None of these: this is not an observational study O Retrospective: Individuals are asked to look back in time Cross-sectional: Information is collected at a specific point in time. O Prospective: Individuals are observed over a long period of time. Determine what type of observational study is described. A researcher wanted to determine whether colon cancer was associated with eating red meat. He selected a sample of 500 men with colon cancer and an equal number of men without colon cancer. The two groups were matched in other words they were similar in terms of age, occupation, income, and exercise levels. The total amount of red meat that each man eaten in the previous twenty years was estimated, based on information provided by subjects. The meat consumption was compared for the two groups. Select one: None of these: this is not an observational study O Cross-sectional: Information is collected at a specific point in time. Prospective: Individuals are observed over a long period of time. Retrospective: Individuals are asked to look back in time Determine the type of the study: A medical researcher obtains a sample of adults suffering from diabetes. She randomly assigns 67 people to a treatment group and 67 to a placebo group. The treatment group receives a medication over a period of three months and the placebo group receives a placebo over the same time frame. At the end of three months the patients' symptoms are evaluated. Select one: observational study; prospective experiment; cross-sectional study experiment, prospective study observational study; retrospective

Explanation / Answer

Cross sectional: info collected at specific time

Retrospective: individual are asked to look bback in time

experiment; cross sectional study

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