TY - JOUR
T1 - Misuse of Statistical Tests in Three Decades of Psychotherapy Research
AU - Dar, Reuven
AU - Serlin, Ronald C.
AU - Omer, Haim
PY - 1994/2
Y1 - 1994/2
N2 - This article reviews the misuse of statistical tests in psychotherapy research studies published in the Journal of Consulting and Clinical Psychology in the years 1967-1968, 1977-1978, and 1987-1988. It focuses on 3 major problems in statistical practice: inappropriate uses of null hypothesis tests and p values, neglect of effect size, and inflation of Type I error rate. The impressive frequency of these problems is documented, and changes in statistical practices over the past 3 decades are interpreted in light of trends in psychotherapy research. The article concludes with practical suggestions for rational application of statistical tests.
AB - This article reviews the misuse of statistical tests in psychotherapy research studies published in the Journal of Consulting and Clinical Psychology in the years 1967-1968, 1977-1978, and 1987-1988. It focuses on 3 major problems in statistical practice: inappropriate uses of null hypothesis tests and p values, neglect of effect size, and inflation of Type I error rate. The impressive frequency of these problems is documented, and changes in statistical practices over the past 3 decades are interpreted in light of trends in psychotherapy research. The article concludes with practical suggestions for rational application of statistical tests.
UR - http://www.scopus.com/inward/record.url?scp=0028182116&partnerID=8YFLogxK
U2 - 10.1037/0022-006x.62.1.75
DO - 10.1037/0022-006x.62.1.75
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AN - SCOPUS:0028182116
SN - 0022-006X
VL - 62
SP - 75
EP - 82
JO - Journal of Consulting and Clinical Psychology
JF - Journal of Consulting and Clinical Psychology
IS - 1
ER -