To assess the extent of the housing downturn, in 2009 the Federal Department of

Question

To assess the extent of the housing downturn, in 2009 the Federal Department of Housing and Urban Development (HUD) obtained information on 1900 randomly-selected single-family houses nationwide. Among other things, they tabulated the numbers of these homes whose mortgages exceeded their present value, and the numbers that were in foreclosure. What type of study was this? A. Observational Study-Case-referent Study B. Controlled Experiment-Randomized Complete Block Design C. Sample Survey D. Controlled Experiment-Matched Pairs or Repeated Measures Design E. Observational Study Cohort Study F Controlled Experiment - Completely Randomized Design

Explanation / Answer

C. Sample survey

The given study is an example of Sample Survey. It is a process of randomly selecting a sample of elements from the target population to conduct a survey. Survey sampling most often involves a questionnaire used to measure the characteristic and/or attributes of people or any other parameter.

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