Moreland K L
J Clin Psychol. 1983 Jan;39(1):104-7. doi: 10.1002/1097-4679(198301)39:1<104::aid-jclp2270390120>3.0.co;2-d.
K-corrected MMPI-168 scales using short and long form K scales (N = 2439). The latter increased the correlation between abbreviated and standard scales in most instances. Because using the entire K scale involves the addition of only 18 items to the MMPI-168 while it generally improves the statistical validity of several scales in addition to K, this was proposed as a cost-effective means of improving the MMPI-168.