On 25 Jun 2003 08:28:38 -0700, [EMAIL PROTECTED] (Dianne Worth) wrote: > > --- David Heiser <[EMAIL PROTECTED]> wrote: > > I found the answer to my own question: One would > subtract/add 4 to the -3/+3 scaling, NOT based on > whether the statement was positively or negatively > worded, but because the Likert-type scale had (for > example) Extremely Unlikely as -3 and Extremely Likely > as +3 for one statement; but as +3 and -3 in another > part of the questionnaire. This converts them so they > are all headed in the same direction.
No, it does not. That is wrong. Adding a constant, positive or negative, does NOT change the direction. As Don (I think it was him) pointed out at the start, you can change the direction by subtraction: If it is scored 1 to 7, you can subtract from 8. That is the same as multiplying by minus-one and adding 8. If it is scored around 0, you just multiply by minus-one (that is, subtract from zero). I repeat: Adding any constant does *not* change the direction of the score. If that is what they intended, then they screwed up. -- Rich Ulrich, [EMAIL PROTECTED] http://www.pitt.edu/~wpilib/index.html "Taxes are the price we pay for civilization." Justice Holmes. . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
