. Author manuscript; available in PMC: 2020 Nov 1.

Published in final edited form as: J Educ Psychol. 2019 Mar 7;111(8):1447–1461. doi: 10.1037/edu0000355

Table 3.

Sex differences in means and correlation for key measures for longitudinal sample

	Boys	Girls

Measure	M (SD)	M (SD)	d	1	2	3	4	5	6	7
Sixth Grade
1. Mathematical competence	106.53 (15.33)	102.25 (14.01)	.29	1.00	.05	.39^b	−.20	−.31^b	---	---
2. English attitudes	4.62 (1.14)	5.32 (1.17)	−.59^a	−.03	1.00	.02	.18	.15	---	---
3. Mathematics attitudes	4.96 (1.08)	4.84 (1.13)	.11	.30	.10	1.00	−.22	−.20	---	---
4. Math anxiety evaluation	2.79 (0.86)	3.14 (1.07)	−.36	.13	.16	−.06	1.00	.69^b	---	---
5. Math anxiety learning	1.88 (0.85)	2.04 (0.86)	−.19	−.03	.16	−.08	.48^b	1.00	---	---
Seventh Grade
1. Numerical Operations	100.23 (18.25)	98.74 (19.16)	.08	1.00	.00	.33^b	−.29	−.39^b	.52^b	.52^b
2. English attitudes	4.97 (0.99)	5.09 (1.14)	−.11	.10	1.00	−.13	.21	−.03	.13	.31^b
3. Mathematics attitudes	5.25 (0.83)	5.01 (0.97)	.27	.33^b	.22	1.00	−.48^b	−.39^b	.12	−.03
4. Math anxiety evaluation	2.34 (0.88)	2.82 (0.93)	−.52^a	−.11	.09	−.33^b	1.00	.56^b	−.14	−.09
5. Math anxiety learning	1.63 (0.59)	1.79 (0.70)	−.25	−.26	.00	−.38^b	,55^b	1.00	−.39^b	−.18
6. Intelligence	105.44 (12.98)	103.98 (13.94)	.11	.46^b	.16	.20	−.15	−.17	1.00	.58^b
7. Word Reading	103.92 (12.69)	103.81 (14.02)	.01	.43^b	.09	.07	−.12	−.27	.54^b	1.00

Note: d = (M_boys – M_girls)/pooled SD.

= significant mean difference with Bonferroni corrected p value (.007). Correlations for boys are below the diagonal and above the diagonal for girls.

= significant with Bonferroni corrected p value (.0024). The correlation between girls’ mathematical competence in 6^th grade and mathematics anxiety for learning (r = −31) approached the cutoff, p = .0029.