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. 2017 Nov 13;8:1939. doi: 10.3389/fpsyg.2017.01939

Table 1.

Descriptive statistics of the research variables.

M SD
Children’s variables
(1) Math fluency 101.22 13.13
(2) Calculation 108.07 9.01
(3) AMAS 22.77 7.59
(4) Intrinsic reading motivation -1.06 1.30
(5) Intrinsic math motivation -0.41 1.21
(6) Intrinsic science motivation -0.36 1.35
(7) Intrinsic general motivation -0.76 1.15
(8) Congruency effect – single digit -47.02 396.02
(9) Congruency effect – double digit -131.42 364.77
(10) Congruency effect - triple digit -74.52 338.80
(11) Congruency effect - math word -27.07 154.49
(12) Congruency effect - neutral word -5.64 182.27
Mothers’ variables
(13) Years of schooling 15.07 2.26
(14) ISEI 59.40 17.69
(15) Math skills in high school 5.26 1.45
(16) Math skills at present 4.78 1.36
(17) Pressure 42.03 5.01
(18) Psychological support 37.03 4.35
(19) Help 34.92 5.13
(20) Press for intellectual development 28.40 7.74
(21) Monitoring 25.00 5.72
(22) Math test anxiety 45.25 13.95
(23) Numerical task anxiety 13.07 5.99
(24) Math course anxiety 12.33 4.72
(25) Math anxiety 70.66 22.21

AMAS, the Abbreviated Math Anxiety Scale (Hopko et al., 2003); congruency effect, the difference between reaction time in the incongruent and congruent conditions in the numerical dot-probe task (Rubinsten et al., 2015); ISEI, the International Socioeconomic Index (Ganzeboom and Treiman, 1996).