RT Journal
T1 COrrections
JF Archives of General Psychiatry
JO Archives of General Psychiatry
YR 1979
FD May 1
VO 36
IS 5
SP 598
OP 598
DO 10.1001/archpsyc.1979.01780050108014
UL http://dx.doi.org/10.1001/archpsyc.1979.01780050108014
AB Error in Formula.— 
    In the article titled "Reliability and Validity in Binary Ratings: Areas of Common Misunderstanding in Diagnosis and Symptom Ratings," published in the December Archives (35:1454-1459, 1978) an error occurred in the phi coefficient formula found on page 1455, left-hand column, line 30. It should read as follows: phi = (ad - bc)/√ p1q1p2q2