You would use twenty students when doing the analysis as you take the top third (10 students) and the bottom third (10 students) when doing the calculations. Always divide the population into thirds after you have placed them in ranked order.
@@shellonsamuels-white9905 wow, nice presentation ❤hi i can't find the video on difficulty index, the lesson before discrimination index, how can I get hold of it.
Thank you very much Mrs. White, my exam is in a few days, and I am just learning this.
Hello what about Tests analytical that could be conducted on that object ?
Highly informative talk, thanks
Glad it was helpful!
How about 30 students how many upper group and how many lower group?
10 each. You always take the upper third and lower third
how about 16 ? divide by 4? or 2
Divide the group in thirds - make an administrative decision to use 5 (one third of population - upper , 5 lower)
should that be 20 or 30students?
You would use twenty students when doing the analysis as you take the top third (10 students) and the bottom third (10 students) when doing the calculations. Always divide the population into thirds after you have placed them in ranked order.
@@shellonsamuels-white9905 Thank you!
@@shellonsamuels-white9905 wow, nice presentation ❤hi i can't find the video on difficulty index, the lesson before discrimination index, how can I get hold of it.
@@christinemumba6365 that lesson was taught in a face to face session.
@@theteachingclinic929 oh ok, I wish she recorded