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Table 4 Correlations values with pre-test (top) and pre-test-FM (bottom) for the most interesting features on each of the 8 problems in the fully-adaptive condition – the high-knowledge group of students

From: Non-intrusive assessment of learners’ prior knowledge in dialogue-based intelligent tutoring systems

  1 2 3 4 5 6 7 8
fg2 0.144 0.428 0.502 0.652 0.557 0.546 0.367 0.314
  0.193 0.428 0.455 0.646 0.559 0.551 0.224 0.385
fg7 –0.227 –0.604 –0.660 –0.540 –0.357 –0.600 –0.194 –0.254
  –0.482 –0.664 –0.609 –0.545 –0.409 –0.678 0.023 –0.208
fg15 0.181 0.492 0.493 0.443 0.581 0.474 0.588 0.730
  0.002 0.393 0.524 0.350 0.648 0.484 0.614 0.636
fg16 –0.291 –0.329 –0.508 –0.551 –0.528 –0.513 –0.144 –0.754
  –0.446 –0.201 –0.356 –0.332 –0.441 –0.389 –0.139 –0.576
fs1 –0.252 –0.507 –0.668 –0.559 –0.405 –0.603 –0.228 –0.369
  -0.475 –0.629 –0.626 –0.578 –0.438 –0.656 0.029 –0.470
fs11 –0.056 –0.568 –0.569 –0.693 –0.328 –0.530 –0.127 –0.339
  –0.335 –0.63 –0.549 –0.629 –0.303 –0.656 0.078 –0.469
fs12 –0.254 –0.343 –0.602 –0.486 –0.352 –0.409 –0.210 –0.159
  –0.504 –0.534 –0.510 –0.512 –0.087 –0.403 0.013 –0.284
  1. Rows correspond to features and columns to problems