Criterion variable | Forced hierarchical order | Predictor variable | R | Adjusted R | F change |

Math performance | 1 | Previous math performance French performance | 0.265 | 0.068 | 37.308*** |

| 2 | CERS-M scores | 0.303 | 0.021 | 23.036*** |

Math performance | 1 | Previous math performance French performance | 0.079 | 0.004 | 3.136* |

| 2 | Emotion expression | 0.158 | 0.018 | 18.904*** |

Math performance | 1 | Previous math performance French performance | 0.067 | 0.002 | 2.206 |

| 2 | Task utility self-persuasion | 0.073 | 0.00 | 0.900 |

Math performance | 1 | Previous math performance French performance | 0.296 | 0.086 | 47.322*** |

| 2 | Negative self-talk | 0.330 | 0.02 | 23.910*** |

Math performance | 1 | Previous math performance French performance | 0.150 | 0.021 | 11.412*** |

| 2 | Help seeking | 0.162 | 0.002 | 3.546 |

Math performance | 1 | Previous math performance French performance | 0.104 | 0.009 | 5.349** |

| 2 | Brief attentional relaxation | 0.145 | 0.009 | 10.398*** |

Math performance | 1 | Previous math performance French performance | 0.159 | 0.023 | 12.754*** |

| 2 | Dysfunctional avoidance | 0.165 | 0.001 | 2.076 |