Development and validation of the Cannabis Exposure in Pregnancy Tool (CEPT): a mixed methods study

Table 6 Test–retest reliability of the CEPT—3-month interval (n = 153)

Construct	Agreement		Kappa	Std. Error	P-Value
Construct	actual	expected
Any second-hand exposure	92%	52%	0.83	0.08	< 0.001
Any use in pregnancy	97%	51%	0.95	0.08	< 0.001
Frequency of use	90%	28%	0.86	0.04	< 0.001
Timing (trimester)	80%	32%	0.71	0.05	< 0.001
Mode of consumption	99%	51%	0.97	0.08	< 0.001

ISSN: 1471-2393