Table 5 Spearman correlation coefficients of individual statements and the score for the “Therapeutic misconception” factor

Usually CTs are aimed primarily at seeking the best medication for the research participants

I would participate in CTs, because then I would receive the best treatment for me

I would like to participate in CTs in order to determine the continuation of my current treatment relationship

In CTs, all participants always receive a new effective agent

In CTs, the physician conducting the research may choose which drug the participant receives

Often, the patient participating in the research may choose which drug they receive

I would participate only in a CT in which at least one of the drugs being compared has been shown to be effective

I would participate in a CT only if the treating physician also is the investigator

I would participate in a CT if that guaranteed me new and improved medication

I would like to participate in a CT because then I would receive more thorough monitoring relative to standard treatment

I would participate in a CT only if I were not satisfied with my current medication

In CTs, the physician conducting the research is aware of whether the participant is receiving a new drug, a placebo (which does not include an effective agent), or an older Parkinson’s disease medication