Table 6.

Coherence - number of coherent, partially coherent and incoherent answers for all 13 questions and difficulty levels

		Coherence
		ChatGPT-4			Google Gemini
Question	Difficulty level	Coherent	Partially coherent	Incoherent	Coherent	Partially coherent	Incoherent	p -value
1	D1	9	1	0	7	3	0	0.58
2		10	0	0	9	1	0	0.9
3		8	2	0	9	1	0	0.9
	D1 total	27	3	0	25	5	0	0.7
4	D2	7	3	0	10	0	0	0.2
5		10	0	0	9	1	0	0.9
6		4	6	0	10	0	0	0.01
7		7	2	1	6	4	0	0.7
8		10	0	0	4	6	0	0.01
	D2 total	38	11	1	39	11	0	0.9
9	D3	10	0	0	7	3	0	0.2
10		9	1	0	7	3	0	0.6
11		9	1	0	9	1	0	1
12		8	2	0	8	2	0	1
13		9	1	0	7	3	0	0.6
	D3 total	45	5	0	38	12	0	0.1