. Author manuscript; available in PMC: 2014 Nov 18.

Published in final edited form as: J Addict Res Ther. 2014 Mar 6;5(2):176. doi: 10.4172/2155-6105.1000176

Table 2.

Effects sizes are provided for statistically significant outcomes

Variable

Group

Dose

placebo

caffeine 150

caffeine 300

d-amph 20

effect size

η_{ρ}^{2}

ARCI-PCAG

control

3.87

3.62

3.52

3.64

(0.82)

(0.83)

(0.79)

(0.71)

cocaine

1.95

1.83

2.95

2.43

(0.58)

(0.68)

(0.82)

(0.67)

ARCI-A ^*

control

3.20

3.60

3.80

3.22

0.33

(0.51)

(0.68)

(0.59)

(0.38)

cocaine

3.30

3.39

3.19

3.69

(0.51)

(0.54)

(0.44)

(0.45)

ARCI-BG

control

6.00

6.35

6.05

5.83

(0.39)

(0.56)

(0.57)

(0.36)

cocaine

5.69

5.77

5.07

5.57

(0.34)

(0.37)

(0.61)

(0.51)

ARCI-MGB

control

4.09

4.34

5.14

4.04

(1.26)

(1.31)

(1.37)

(1.28)

cocaine

5.29

5.62

4.31

5.18

(1.13)

(1.23)

(0.96)

(1.00)

ARCI-LSD ^***

control

1.78

2.43

1.23

1.70

0.32

(0.44)

(0.56)

(0.41)

cocaine

0.89

0.48

1.05

0.98

(0.47)

(0.49)

(0.45)

VAS-depression

control

0.10

0.41

0.10

(0.10)

(0.30)

(0.06)

cocaine

1.05

0.62

1.96

1.10

(0.54)

(0.47)

(1.12)

(0.51)

VAS-fatigue

control

3.85

3.00

3.44

3.60

(1.37)

(1.48)

(1.64)

(1.07)

cocaine

0.68

0.54

1.69

1.17

(0.32)

(0.25)

(0.71)

(0.36)

VAS-tension

control

1.05

1.60

1.62

1.53

(0.38)

(0.53)

(0.60)

(0.48)

cocaine

1.63

0.96

2.38

1.88

(0.62)

(0.57)

(0.94)

(0.61)

VAS-vigor

control

8.25

8.50

9.78

8.28

(2.06)

(1.92)

(1.98)

(2.01)

cocaine

10.42

10.85

9.27

10.31

(1.54)

(1.59)

(1.60)

(1.33)

VAS-anxious

control

10.15

10.45

8.50

11.68

(5.31)

(5.69)

(4.91)

(4.62)

cocaine

19.64

21.35

25.27

21.71

(6.17)

(6.01)

(7.12)

(5.43)

VAS-elated ^*, ^**

control

8.65

9.85

13.65

10.43

0.30, 0.37

(5.33)

(5.32)

(6.10)

(4.48)

cocaine

25.99

32.54

21.65

25.71

(6.01)

(7.62)

(5.68)

(6.42)

DEQ- feel effects

control

16.75

20.25

9.45

11.37

(7.58)

(6.31)

(4.97)

(4.93)

cocaine

17.30

20.73

17.62

18.68

(5.80)

(5.95)

(5.91)

(6.08)

DEQ- like effects

control

39.92

35.62

52.17

42.25

(6.82)

(6.89)

(6.95)

(5.74)

cocaine

37.18

39.94

43.75

32.04

(9.74)

(10.55)

(7.21)

(8.63)

DEQ- high

control

10.77

12.17

7.17

(5.23)

(5.59)

(4.16)

(3.95)

cocaine

14.35

16.14

15.87

14.64

(5.45)

(5.67)

(5.78)

(5.44)

DEQ- like more

control

25.77

25.62

32.92

25.65

(7.20)

(6.54)

(7.01)

(6.08)

cocaine

25.96

25.68

28.71

26.16

(9.18)

(8.99)

(8.48)

(8.69)

Means (delta-method robust standard errors) for subjective effects measures (ARCI, DEQ, VAS) across placebo, 150 mg caffeine, 300 mg caffeine, and 20 mg d-amphetamine doses. Data are averaged across two time points on each dose day, and shown separately for control and cocaine-dependent groups

p < .05, dose × time interaction, see text for details

^**

p < .05, dose × group interaction, see text for details

^***

p < .05, dose × group × time interaction, see text for details