CTN 004 (3 session MET vs. TAU)

Baseline Week 1 Week 2 Week 3 Week 4 Week 8 Week 160

10

20

30

40

50

60

70

80 MI/METAssessment

Estim

ated

Tim

e in

Min

utes

CTN 005 (MI vs. Usual Intake)

Baseline Week 4 Week 120

20

40

60

80

100

120

140 MI/METAssessment

Estim

ated

Tim

e in

Min

utes

CTN 013 (3 session MET vs. TAU, Pregnant Women)

Baseline Week 1 Week 2 Week 3 Week 4 Week 8 Week 160

20

40

60

80

100

120

140

160 MI/METAssessment

Estim

ated

Tim

e in

Min

utes

Speaking of CTN 013…

Source: Ondersma, et al., submitted

Why might this happen?

• Assessment is pretty long, relative to brief interventions.

• Assessment mirrors a lot of the factors we are targeting in MI.

• Assessment may have an advantage over human interactions (e.g., interpersonal reactance).

• Assessment has long been used alongside MI (e.g., MET, “Check-Up”).

• If this is true, there are frustrating/wonderful implications!