Compute the (inrmity:r {p} and discrimination {at} indicee pi a test item edminieteree te 34 peeple if 52 testtakers answered the item cerreetiy; 2G in the upper greup (upper 3% of tetel test ecere dietributien} end 12 in the lower greup {lower 3% pt tetei test ecere distribution} get the item right? (Note: it : 4]