Delphi Rounds One and Two
Of the 74 terms considered by the expert group members in Round One, seven were automatically adopted as core concepts, having reached the voting threshold (80% agreement), 35 terms were flagged for further discussion (50-79%), and 32 terms were automatically rejected (<50%). Note that two of the seven terms accepted during Round One were later merged – concentration-response relationships and dose-response curve - to form Dose / concentration response relationships . During Round One, expert group members collectively proposed an additional 97 terms that they felt were missing from the Round One list of terms. In Round Two, 23 terms were flagged for further discussion and the remaining 74 terms were rejected. As the total number of responses for the Delphi Rounds varied from 20-23, the 80% threshold for acceptance varied from 16 to 18 respondents.