It is shown in this paper that the unconditional orsimultaneous maximum likelihood estimation procedurefor the one-parameter logistic model gives rise tobiased estimators. This bias cannot be removed by acorrection factor (K - 1)/K (where K is the number ofitems), contrary to the contention of...

Future time perspective - the way individuals perceive their remaining time in life - importantly influences socio-emotional goals and motivational outcomes. Recently, researchers have called for studies that investigate relationships between personality and future time perspective. Using a...