The standard gamble procedure was carried out using a top-down titration search procedure, recorded using a paper form.
In the standard gamble procedure the patients are asked to choose between a certain-but-imperfect health state and a gamble between perfect health and death.
We anticipated more subjects in the explicit tool arm, however observed difficulties for patients in understanding the standard gamble procedure subsequently led to the explicit arm of the trial being discontinued prematurely [24].
To pilot using a panel of members of the public to provide preference data via the Internet A stratified random sample of members of the general public was recruited and familiarised with the standard gamble procedure using an Internet based tool.
It was clear that the standard-gamble procedure of the explicit tool dominated the middle section of consultations and extended their overall timescale.
Frustrated by the lack of treatment options in the U.S., she was willing to gamble on a $10,000 procedure involving the injection of 3 million of her own stem cells, extracted from bone marrow in her hip, into the fluid surrounding her spinal cord.
But the procedure is a gamble, and outcomes are hard to predict.
For each fractile procedure, we measured each gamble multiple times and used the average CE as the outcome for the next gamble.
We used a classical method for measuring vNM utility functions (the "fractile" procedure) that iteratively aligns gamble outcomes with previously determined points on the utility axis [ 24, 25].
Due to the large range in programs and intake procedures across addiction and problem gambling agencies, creating a questionnaire that is generalizeable to all is challenging.
