Table 3.

Number of Items, Score Distributions, and Floor and Ceiling Effects of the CEQ and CEQ-2.^a

Questionnaire	Number of items	Median score	Range	Possible range	Median scaled scoreb	Median scaled range	Correlation (r)	Cronbach α	Floor effect	P value	Ceiling effect	P value
CEQ	9	61 (56–63)	9-63	9-63	61 (56–63)	9-63	.75c	0.93	1 (0.48)	.010	96 (46)	<.001
CEQ-2d	2	14 (13–14)	2-14	2-14	63 (59–63)	9-63		0.94	2 (0.95)		152 (72)

Abbreviation: CEQ, Communication Effectiveness Questionnaire.

^a Bold indicates statistically significant difference; Spearman correlation indicated by r; Continuous variables as median (interquartile range [IQR]); Discrete variables as number (percentage).

^b Scaled scores converted to maximum of 63.

^c P < .001.

^d CEQ short form with items 7 and 8 of the original CEQ.