Participants in Q studies are frequently asked to sort Q items under a quasi-normal distribution.
This function generates such a Q distribution, given a number of statements nstat
and a desired maximum positive value max.bin
in the Q distribution.
The function always returns an uneven number of columns, ensuring that there is always a modal column at the zero mark.
Not every combination of nstat
and max.bin
can be neatly fit under a standard normal distribution, in which case the function returns a vector of unequal length to the specified nstat
.
The function will issue a warning in that case.
Researchers can either accept the different nstat
, or try again with a different max.bin
.