Profile of mood states  The Profile of Mood States (POMS) is a psychological rating scale used to assess transient, distinct mood states. This scale was developed by McNair, Droppleman, and Lorr. Advantages of using this assessment include the simplicity of administration and ease of participant understanding. Another feature of the assessment that is notable is POMS psychological states can be assessed quickly due to the simplicity of the test. POMS can be administered and measured through written or online forums. The POMS measures six different dimensions of mood swings over a period of time. These include: Tension or Anxiety, Anger or Hostility, Vigor or Activity, Fatigue or Inertia, Depression or Dejection, Confusion or Bewilderment. A five-point scale ranging from "not at all" to "extremely" is administered by experimenters to patients to assess their mood states. There are two forms of the test; the long form that is administered primarily to adults and the short form which is primarily administered to adolescents. Completion of the assessment can take 5–15 minutes, depending on the form. In 1971, Douglas M. McNair along with Maurice Lorr and Leo F. Droppleman developed the first Profile of Mood States which became the building block for being able to measure mood changes in people. With creating this scale, McNair and his colleagues came up with six distinct dimensions of mood swings that anyone can experience over time; Tension or Anxiety, Depression or Dejection, Anger or Hostility, Vigor or Activity, Fatigue or Inertia, and Confusion or Bewilderment. The first edition of the POMS scale is made up of 65 self-report questions where participants use a Likert scale to indicate whether each question related to them or not. This scale was the only in existence until 1983 when S. Shacham created the POMS-SF, a more concise version of McNair's original creation. Composed of only 37 questions, the shortened version still could produce significant results for participants while dramatically cutting down on the time it took to take the test. Recently there has been an updated edition created by McNair and Juvia P. Heurchert, the Profile of Mood States 2nd Edition (POMS 2). Like the original one created in 1971, this one also includes a short and long form of the test with 35 & 65 questions respectively. POMS - long form  The first edition of the Profile of Mood States scale is known as the POMS-Standard version or the POMS-long form.