How do machine-generated questions compare to human-generated questions?

Research and Practice in Technology Enhanced Learning

Table 5 Pair-by-pair t tests of means from Table 4

Relevance	Fluency	Ambiguity	Pedagogy	Depth
Professional vs. knowledge base
p = 0.214	p = 0.546	p = 0.363	p = 0.0167**	p = 0.0313**
d = 0.344	d = −0.163	d = 0.235	d = 0.669	d = 0.669
Power = 0.507	Power = 0.612	Power = 0.517	Power = 0.495	Power = 0.594
Knowledge base vs. web
p < 0.01**	p = 0.7153	p = 0.3481	p = 0.0659*	p = 0.5095
d = −0.9118	d = 0.1153	d = −0.2709	d = −0.4748	d = −0.1735
Power = 0.360	Power = 0.738	Power = 0.546	Power = 0.448	Power = 0.587
Professional vs. web
p = 0.0765*	p = 0.9538	p = 0.8453	p = 0.4419	p = 0.1088
d = −0.5472	d = −0.0199	d = −0.0658	d = 0.2383	d = 0.4909
Power = 0.579	Power = 0.954	Power = 0.850	Power = 0.590	Power = 0.567