Re: Consulting Time

<insert tongue in cheek>
"never" may be too strong a word.
In consulting on 200 or so doctoral dissertations, and a thousand or so Congressional Investigations since 1972, I have had 2 instances where the data was as clean as the client told me.
<remove tongue from cheek>

My best guess is that the data cleaning/prep/exploration time can be as low as 80% of analyst time when the data comes from from Census or NCHS.
I have seen it exceed 95% on several occasions.
90% would probably be a good rule of thumb.

Art

Social Research Consultants


John_Kane wrote:


My,not too extensive, experience suggests that you should, at the very
least, triple the time you estimate to clean-up or reorganize the data.
Data is never as clean or nicely layed out as the client tells you it
is.

.

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