ANDERSON T., 2001, J ASYNCHRONOUS LEARN, V5, P1, DOI 10.24059/OLJ.V5I2.1875, DOI 10.24059/OLJ.V5I2.1875;ANDERSON T, 2011, INT REV RES OPEN DIS, V12, P80, DOI 10.19173/IRRODL.V12I3.890;ARBAUGH JB, 2008, INTERNET HIGH EDUC, V11, P133, DOI 10.1016/J.IHEDUC.2008.06.003;ARCHER W., 2001, AM J DISTANCE ED, V15, P7, DOI 10.1080/08923640109527071, DOI 10.1080/08923640109527071;BAGLEY E, 2009, INT J GAMING COMPUT-, V1, P36, DOI 10.4018/JGCMS.2009010103;BARR J. J., 2016, DEV POSITIVE CLASSRO;BENESTY J, 2009, SPRINGER TOP SIGN PR, V2, P37, DOI 10.1007/978-3-642-00296-0_5;BREIMAN L, 2001, MACH LEARN, V45, P5, DOI 10.1023/A:1010933404324;XIA JH, 2013, ISS EDUC RES, V23, P97;COHEN J, 1960, EDUC PSYCHOL MEAS, V20, P37, DOI 10.1177/001316446002000104;DONNELLY R, 2011, INTERACT LEARN ENVIR, V19, P303, DOI 10.1080/10494820903075722;FARROW E, 2019, PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON LEARNING ANALYTICS & KNOWLEDGE (LAK'19), P170, DOI 10.1145/3303772.3303779;FERREIRA-MELLO R, 2019, WIRES DATA MIN KNOWL, V9, DOI 10.1002/WIDM.1332;GARRISON D. RANDY, 2007, INTERNET AND HIGHER EDUCATION, V10, P157, DOI 10.1016/J.IHEDUC.2007.04.001;GARRISON D. R., 1999, INTERNET AND HIGHER EDUCATION, V2, P87, DOI 10.1016/S1096-7516(00)00016-6;GARRISON DR, 2010, INTERNET HIGH EDUC, V13, P5, DOI 10.1016/J.IHEDUC.2009.10.003;GASEVIC D., 2017, LEARN RES PRACT, V3, P63, DOI DOI 10.1080/23735082.2017.1286142;GASEVIC D, 2015, INTERNET HIGH EDUC, V24, P53, DOI 10.1016/J.IHEDUC.2014.09.006;GRAESSER AC, 2004, BEHAV RES METH INS C, V36, P193, DOI 10.3758/BF03195564;GRAESSER AC, 2011, EDUC RESEARCHER, V40, P223, DOI 10.3102/0013189X11413260;HE HB, 2009, IEEE T KNOWL DATA EN, V21, P1263, DOI 10.1109/TKDE.2008.239;JOKSIMOVIC S, 2015, J COMPUT ASSIST LEAR, V31, P638, DOI 10.1111/JCAL.12107;KOTCZ, 2004, ACM SIGKDD EXPLORATI, V6, P1, DOI 10.1145/1007730.1007733, DOI 10.1145/1007730.1007733;KOVANOVIC V., 2014, LAK 14;KOVANOVIC V, 2016, LAK '16 CONFERENCE PROCEEDINGS: THE SIXTH INTERNATIONAL LEARNING ANALYTICS & KNOWLEDGE CONFERENCE,, P15, DOI 10.1145/2883851.2883950;KOVANOVIC VITOMIR, 2014, WORKSH ED DAT MIN C;KOVANOVIC VITOMIR, 2014, J LEARN ANAL, V1, P195, DOI DOI 10.18608/JLA.2014.13.21;KOZAN K, 2014, INTERNET HIGH EDUC, V21, P68, DOI 10.1016/J.IHEDUC.2013.10.007;KRIPPENDORFF K., 2018, CONTENT ANAL INTRO I;LANDIS JR, 1977, BIOMETRICS, V33, P159, DOI 10.2307/2529310;LO R.T.W., 2005, J DIGIT INF MANAG, V5, P17;MCCARTHY P. M., 2006, FLAIRS 2006, P764;MCKLIN TOM, 2004, THESIS;MCNAMARA DS, 2014, AUTOMATED EVALUATION OF TEXT AND DISCOURSE WITH COH-METRIX, P1, DOI 10.1017/CBO9780511894664;MESSICK S., 1995, ED MEAS, V14, P5, DOI DOI 10.1111/J.1745-3992.1995.TB00881.X, 10.1111/J.1745-3992.1995.TB00881.X;MILMAN NB, 2015, ADV EDUC TECHNOL INS, P156, DOI 10.4018/978-1-4666-6300-8.CH011;NETO V, 2018, LECT NOTES COMPUT SC, V11082, P245, DOI 10.1007/978-3-319-98572-5_19;ORENGO VM, 2001, EIGHTH SYMPOSIUM ON STRING PROCESSING AND INFORMATION RETRIEVAL, PROCEEDINGS, P186, DOI 10.1109/SPIRE.2001.989755;PENNEBAKER JAMES W, 2015, TECHNICAL REPORT;POQUET O, 2018, INT REV RES OPEN DIS, V19, P43;ROLIM V, 2019, IEEE INT CONF ADV LE, P163, DOI 10.1109/ICALT.2019.00058;ROLIM V, 2019, INTERNET HIGH EDUC, V42, P53, DOI 10.1016/J.IHEDUC.2019.05.001;ROURKE L, 1999, J DISTANCE ED, V14, P50;STRIJBOS JW, 2011, IEEE T LEARN TECHNOL, V4, P59, DOI 10.1109/TLT.2010.37;TAUSCZIK YR, 2010, J LANG SOC PSYCHOL, V29, P24, DOI 10.1177/0261927X09351676;WATERS Z, 2015, LECT NOTES COMPUT SC, V9460, P227, DOI 10.1007/978-3-319-28940-3_18