For each situation described by the statements below, what is the variable being measured, what its type (quantitative or qualitative) and what type of scale is used for its measurement? (Nominal, ordinal, interval or ratio).
|Variable measured||Type of variable|
Scale of measurement
|1. In order to study the effect of educational level on infection possibility the researcher classified the educational level as uneducated, school education only and university education.|
|2. In a survey for health management purposes a researcher measured the time required by doctors to finish certain surgical operations.|
|3. In a study on methods of disease transmission the researcher has to classify disease transmission as direct or indirect.|
|4. In a study of the effect of certain drugs of temperature the mean temperature of children in each treatment group were compared with the others.|
5. Smoking status of mothers was measured to study its effect on possibility of infant developing asthma.
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