Linking the first- and second-phase IEA studies on mathematics and science.

In FIMS, (bridge 1) HT <math xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi>r</mi><mo>=</mo><mn>0.97</mn><mo>,</mo><mi>p</mi><mo> </mo><mn>0.001</mn></mrow></math> ht and (bridge 2) HT <math xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi>r</mi><mo>=</mo><mn>0.84</mn><mo>,</mo><mi>p</mi><mo> </mo><mn>0.001</mn></mrow></math> ht . In SIMS, (bridge 1) HT <math xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi>r</mi><mo>=</mo><mn>0.88</mn><mo>,</mo><mi>p</mi><mo> </mo><mn>0.001</mn></mrow></math> ht and (bridge 3) HT <math xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi>r</mi><mo>=</mo><mn>0.66</mn><mo>,</mo><mi>p</mi><mo> </mo><mn>0.001</mn></mrow></math> ht . Finally, in SISS, (bridge 4) HT <math xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi>r</mi><mo>=</mo><mn>0.86</mn><mo>,</mo><mi>p</mi><mo> </mo><mn>0.001</mn></mrow></math> ht and (bridge 6) HT <math xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi>r</mi><mo>=</mo><mn>0.80</mn><mo>,</mo><mi>p</mi><mo> </mo><mn>0.001</mn></mrow></math> ht . [Extracted from the article]