. 2016 Aug 24;7:1181. doi: 10.3389/fpsyg.2016.01181

Table 3.

Descriptive statistics for key variables by grade level.

	First grade n = 114		Second grade n = 98		Third grade n = 84
	Mean	SD	Mean	SD	Mean	SD
MASYC negative reactions	1.69^a	0.91	1.45^b	0.64	1.59^c	0.78
MASYC numerical confidence	1.83	0.72	1.61	0.64	1.74	0.69
MASYC worry	1.83	0.80	1.73	0.69	1.88	0.72
MASYC-R negative reactions	1.59	0.82	1.34	0.58	1.45	0.66
MASYC-R numerical confidence	1.77	0.89	1.55	0.76	1.75	0.88
MASYC-R worry	2.12	0.84	1.99	0.78	2.20	0.85
General anxiety	1.95	0.72	1.88	0.72	2.06	0.72
Math confidence	3.56^a	0.44	3.57^a	0.45	3.35^b	0.58
Math interest	3.28	0.86	3.24	0.91	3.21	0.91
Math importance	3.45	0.56	3.55	0.58	3.51	0.56
Math performance	32.80^a	19.63	47.92^b	19.51	69.77^c	17.82

The statistics for the anxiety factors are based on the original scale metric (1–4) and are not factor scores. The numerical confidence scale is reverse-coded such that higher numbers are equivalent to lower confidence. The sample sizes for math performance are: first grade = 106, second grade = 96, third grade = 79. If a score has a superscript of a different letter from another, those were found to be statistically significantly different from one another. If there are no superscripts there was no difference.