Table 3.

Provider baseline measures.

Concept	Definition	Items 1
Attitudes toward adoption	Attitudes toward adoption of genome-guided prescribing CDS	Twelve items (Evidence Based Practice Attitude Scale—Genome Informed Interventions, EBPAS-GII) 2
Perceived usefulness	Perceived usefulness of genome-guided prescribing CDS	Two items: patient genotype data is useful for making prescribing decisions; decision support aids are useful for making prescribing decisions Rating scales range from 1 to 5: 1 = definitely false 2 = mostly false 3 = don’t know 4 = mostly true 5 = definitely true
Awareness	Awareness of genome-guided prescribing CDS	Two items: how aware are you of decision support aids; how aware are you of genome-guided prescribing Rating scales are binary: 0 = unaware of use 1 = aware of use
Experience	Experience with genome-guided prescribing CDS	Two items: how often do you use decision support aids; how often do you perform genome-guided prescribing Rating scales range from 0 to 2: 0 = never use 1 = sometimes use 2 = often use
Comfort using technology	Comfort using computers and the local electronic health record system	Two items: how comfortable are you with using computers; how comfortable are you with using Epic (the local electronic health record system)? Rating scale ranges from 1 to 5: 1 = not at all comfortable 2 = not very comfortable 3 = neither comfortable or uncomfortable 4 = comfortable 5 = very comfortable
Covariate		Socially desirable response (SDR) scale 3

¹ Items from baseline questionnaires distributed during the training session. ² Adapted from the Evidence Based Practice Attitude Scale [17,18] (See Table 1 and Table 2). ³ Socially desirable response scale (SDRS-5) [19].