Hi Candy.
So, heres my experience. I had the book for about 3 months before taking the NLN test. I studied when I could during seminary. its like the SAT with science added in-physics, bio etc. might have been earth science too but I don’t remember. I mostly reviewed the science section and math sections. but I really didn’t study. what I really did was read through each chapter (ok, scanned) then did the practice test and anything I did not know I read in detail.
I found the exam to be like the SAT. I took the paper version no the computer version so it really reminded me of the SAT without the essay.
and yes, its not the TEAS. that test is administered by ATI (a testing company that also makes NCLEX test prep programs). I never took the TEAS or prepped for them. the 2 schools I applied to wanted the NLN pre-entrance exam so I don’t know anything about it