. Author manuscript; available in PMC: 2018 Apr 9.

Published in final edited form as: Psychopharmacology (Berl). 2016 Dec 28;234(5):815–825. doi: 10.1007/s00213-016-4516-2

Table 4.

ANCOVA significant F values for active lever responses during testing (housing and dose effects)

Experiment	Inactive lever responses as covariate	Photobeam breaks as covariate
SKF Day 1	H (1,51) = 49.1^***	H (1,51) = 27.0^***
	HXD (2,51) = 4.6^*	HXD (2,51) = 6.0^**
SKF Day 30	H (1,77) = 9.7^***	D (2,77) = 15.1^***
	D (2,77) = 9.0^***
quin Day 1	H (1,54) = 51.3^***	H (1,54) = 59.7^***
	HXD (2,54) = 6.1^**	HXD (2,54) = 7.7^**
quin Day 30	H (2,85) = 13.7^***	H (2,85) = 16.4^***

F value and degrees of freedom indicated. Factors are indicated by H (housing) and D (dose) with a cross indicating an interaction

SKF SKF 81297, quin quinpirole

P < 0.05,

^**

P < 0.01, and

^***

P < 0.001