A researcher matched 30 participants on intelligence (hence 15 pairs of participants), and then compared differences in emotiona
l responsiveness to two experimental stimuli between each pair. For this test, what are the critical values, assuming a two-tailed test at a 0.05 level of significance? (A) ±2.042
(B) ±2.045
(C) ±2.131
(D) ±2.145
