Electronic voting to encourage interactive lectures: a randomised trial

BMC Medical Education

Table 2 Kruskal-Wallis analysis on ranks for the 7-item SELT questionnaire (range: strongly disagree-strongly agree, points value of range: 1–7, maximum possible score per item = Nx7). All differences for the 7 domains significant for the grouping variable "Lecture" (p < 0.001).

Domain	Lecture	N	Rank Order	Score expressed as % of maximum possible score (not used for Kruskal Wallis statistic)	Mean Rank Score for Kruskal Wallis statistic
Effectiveness	Trad Br	38	3	78	67
	EVS Br	40	4	74	54
	Trad Cx	43	2	86	94
	EVS Cx	43	1	90	111
Organisation	Trad Br	38	3	86	82
	EVS Br	41	4	74	45
	Trad Cx	43	2	91	100
	EVS Cx	43	1	91	104
Concern	Trad Br	38	3	81	78
	EVS Br	41	4	77	62
	Trad Cx	43	2	85	87
	EVS Cx	43	1	89	104
Enthusiasm	Trad Br	37	4	75	62
	EVS Br	41	3	77	65
	Trad Cx	43	2	84	85
	EVS Cx	43	1	93	115
Participation	Trad Br	37	4	71	59
	EVS Br	41	3	75	63
	Trad Cx	43	2	85	90
	EVS Cx	43	1	92	114
Stimulation	Trad Br	38	3	71	62
	EVS Br	41	4	69	61
	Trad Cx	43	2	82	93
	EVS Cx	43	1	89	113
Clarity	Trad Br	38	3	80	75
	EVS Br	41	4	69	49
	Trad Cx	43	2	87	94
	EVS Cx	43	1	91	111

Trad Br = traditional breast cancer lecture, EVS Br = EVS breast cancer lecture, Trad Cx = traditional cervical cancer lecture, EVS Cx = EVS cervical cancer lecture.

ISSN: 1472-6920