Re: Help Log-Probit in Excel

2001-01-26 Thread Nick Nelson
"H. Noedl" wrote: Unfortunately my knowledge of statistics is rather limited to the basics (i.e. regression, t-test etc.). I tried by transforming the drug concentration into NLog (LN(x)) and the response into probits (NORMSINV(x)+5) and doing an ordinary linear regression (y=a+bx) to

Re: Adaptive Testing

2000-02-04 Thread Nick Nelson
Robert Lienhart wrote: I want to make a mean comparison with two test groups( every person is tested twice). The problem is, this is an ADAPTIV testing; which means that every person has different absolute results, e.g. In general I'd say no. The thing with adaptive testing is that the