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mickey_pSend an Instant Message to mickey_p  




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Quick Scroll 05.02.06 (2 years ago) #11
Ok Jayantha... here goes

If the correlation between two measures of mental status is .70, we can conclude that:
a. The value of one measure increases by .70 when the other measure increases by 1
b. 49% of the observations fall on the regression line
c. 70% of the observations fall on the regression line
d. 70% of the variation in one measure is accounted for by the other
e. 49% of the variation in one measure is accounted for by the other

I have just selected a random topic from biostats for you all to discuss

Dr Manish
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Quick Scroll 07.27.06 (2 years ago) #12
i m not sure but what ever i have read i think its e
as variance is r*r THATS 49 HERE IN PERCENT
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Quick Scroll 07.27.06 (2 years ago) #13
thats right!

49% here is 'coefficient of determination'(COD) which is mathematically square of correlation coefficient (0.7 square is 0.49 i.e. 49%)

COD is used when correlating two numerical data.... it tells you how much of variation in one set of data is accounted by other set.

Dr Manish
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Quick Scroll 08.15.06 (2 years ago) #14
HI,MANISH HOW ARE YOU?
HAPPY INDEPENDENCE DAY.
REGARDS.
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Quick Scroll 08.16.06 (2 years ago) #15
I am good thanks Jayanta!
Happy independence day to you and all!

Dont see any questions coming up!

Dr Manish
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Quick Scroll 08.26.06 (2 years ago) #16
SORRY FOR LATE REPLY.
WELCOME MANISH.
SEE YOU.
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Quick Scroll 07.09.07 (1 year ago) #17
OOPS,MODERATORS,
I'M FRUSTRATED.
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Quick Scroll 07.18.07 (1 year ago) #18
FRUSTRATED icon_question.gif
WHY,MAN icon_question.gif
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Quick Scroll 09.07.07 (1 year ago) #19
Q: the purpose of double blinding study is to

1) reduce the effects of sampling variation.
2) avoid observer and subject bias
3) avoid Obs bias and sampling variation
4) avoid subjective bias and sampling variation.

.....


pulse says ans is 3.......????????????
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Quick Scroll 12.31.07 (9 months ago) #20
IT'S [2].
REGARDS.
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