Evidence of probability misconception in engineering students—why even an inaccurate explanation is better than no explanation

International Journal of STEM Education

Table 4 Correlation between the correct choice selection and the existence of explanation with the students’ test-scores

Task	Correlation between the correct choice selection (c, ce, cwe)	t value	Correlation with the explanation existence (ce, cwe, we)	t value
Maternity hospital	0.25	4.46	0.54	10.9
Lotto	0.29	7.26	0.59	17.9
Mobile phones	0.30	5.49	0.60	13.0
IT engineer	0.32	8.27	0.59	17.6
R/W balls	0.16	2.84	0.53	10.7
Lawyer	0.12	2.07	0.48	9.36

All correlations are statistically significant (p<0.05). Level of significance is exhibited with t-parameter of applied t-test