Table 2.

Average Unit Costs of Resources ^a (N = 141)

	Unit Cost ($/unit)
Counseling (group)b	10.40 (1.42)
Testingc
Materials	8.72 (0.00)
Labor	3.51 (0.56)
Extra education (ST only)d	6.58 (1.05)
Incentives
Activity selection/verificatione	6.58 (1.05)
Voucher selectionf	5.49 (0.88)
Prize drawing/selectiong	4.94 (0.79)
Shop/process vouchersh	26.37 (24.54)
Shop/process prizesi	18.01 (15.20)

^aValues represent means and standard deviations (parentheses). Unit costs are averaged across all sites and weighted by sample size at each site. All labor includes fringe benefits and overhead.

^b$ per participant per session. Includes session time plus administrative time (e.g., taking notes). Prorated by average number of session participants.

^c$ per test. Includes both alcohol and drug testing.

^d$ per 15-minute education session given only to participants in the ST group to control for the individualized attention associated with activity selection in the CM conditions.

^e$ per 15-minute activity selection session (applicable only to participants in the CM conditions). Includes time to verify activities completed during previous week and brainstorm activities for subsequent week.

^f$ per voucher item selection session. Includes time to select voucher items.

^g$ per prize drawing session. Includes time to facilitate drawing and selection of prizes.

^h$ per participant in Voucher CM group. Includes time to shop and process voucher items (prorated by value of vouchers awarded).

ⁱ$ per participant in Prize CM group. Includes time to shop and process prizes (prorated by value of prizes awarded).