Table 2. Breusch-Pagan test for heteroscedasticity. Each column corresponds to one of the six questions. Since the linear model has only one regressor the Koenker version of the test has one degree of freedom for all questions.

	Q1	Q2	Q3	Q4	Q5	Q6
LM statistic	0.46	11.84	0.0037	4.607	7.5679	1.1711
p-value	0.5	0.0005	0.95	0.03	0.005	0.28
samples	192	192	192	192	188	188