Data collection is generally done using interviews and observations with instruments questionnaire and check list. Research parameters used to measure the success rate of a given intervention is quite comprehensive i.e. qualitative or katagorikal parameters are: very good, good, quite good and less good, so we predict the scale of data – is the ordinal although not mentioned in the article. The use of time to research all of the article is not mentioned, however the estimated time research is short (in a matter of weeks or months). This can be understood because it is generally a cross sectional study approach does take a long time.
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