TY - RPRT TI - Using segmented linear regression models with unknown change points to analyze strategy shifts in cognitive tasks. AU - K Luwel AU - A L Beem AU - P Onghena AU - L Verschaffel PY - 2001 DO - 10.3758/bf03195404 UR - https://pubmed.ncbi.nlm.nih.gov/11816449/ ID - 11816449 ER -