AGUDO-PEREGRINA AF, 2014, COMPUT HUM BEHAV, V31, P542, DOI 10.1016/J.CHB.2013.05.031;ANDERSON, 2002, MODEL SELECTION MULT;ANDERSON T, 2003, INT REV RES OPEN DIS, V4;ARBAUGH JB, 2007, DECIS SUPPORT SYST, V43, P853, DOI 10.1016/J.DSS.2006.12.013;BEN-NUN P., 2008, RESPONDENT FATIGUE, P743;BERNARD RM, 2004, REV EDUC RES, V74, P379, DOI 10.3102/00346543074003379;BERNARD RM, 2009, REV EDUC RES, V79, P1243, DOI 10.3102/0034654309333844;BLIKSTEIN P, 2011, P 1 INT C LEARN AN K, P110;BOROKHOVSKI E, 2012, DISTANCE EDUC, V33, P311, DOI 10.1080/01587919.2012.723162;BOUHNIK D, 2006, J AM SOC INF SCI TEC, V57, P299, DOI 10.1002/ASI.20277;BRYMAN A., 2016, SOCIAL RES METHODS, V5TH ED;CARROLL C, 2009, J CONTIN EDUC HEALTH, V29, P235, DOI 10.1002/CHP.20041;CHO MH, 2013, INTERNET HIGH EDUC, V17, P69, DOI 10.1016/J.IHEDUC.2012.11.001;CLARDY A, 2009, DISTANT ON LINE ED E;CLARK R. E., 1985, JOURNAL OF EDUCATIONAL COMPUTING RESEARCH, V1, P137, DOI 10.2190/HC3L-G6YD-BAK9-EQB5;CLARK R. E., 2000, Q REV DISTANCE ED, V1, P3;CLARK RE, 1983, REV EDUC RES, V53, P445, DOI 10.3102/00346543053004445;CLARK RE, 1994, ETR&D-EDUC TECH RES, V42, P21, DOI 10.1007/BF02299088;CLEARY TJ, 2009, J SCHOOL PSYCHOL, V47, P291, DOI 10.1016/J.JSP.2009.04.002;DARABI A, 2013, AM J DISTANCE EDUC, V27, P228, DOI 10.1080/08923647.2013.837651;DE LAAT M., 2006, NETWORKED LEARNING;DE LAAT M, 2013, AM BEHAV SCI, V57, P1421, DOI 10.1177/0002764213479364;DONNELLY R, 2010, COMPUT EDUC, V55, P1357, DOI 10.1016/J.COMPEDU.2010.06.010;ECKLES JE, 2012, SOC PSYCHOL EDUC, V15, P165, DOI 10.1007/S11218-011-9173-Z;FANG L., 2012, COMMUNICATIONS STAT, V42, P727;FRIEDMAN J. H., 2009, ELEMENTS STAT LEARNI;FRIESEN N, 2013, HANDBOOK OF DISTANCE EDUCATION, 3RD EDITION, P351;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, P31, DOI 10.1016/J.IHEDUC.2009.10.002;GARRISON DR, 2005, AM J DISTANCE EDUC, V19, P133, DOI 10.1207/S15389286AJDE1903_2;GASEVIC D, 2013, AM BEHAV SCI, V57, P1460, DOI 10.1177/0002764213479362;GIKANDI JW, 2011, COMPUT EDUC, V57, P2333, DOI 10.1016/J.COMPEDU.2011.06.004;GUNAWARDENA CN, 1997, J EDUC COMPUT RES, V17, P397, DOI 10.2190/7MQV-X9UJ-C7Q3-NRAG;HILLMAN D. C. A., 1994, AM J DISTANCE EDUC, V8, P30, DOI 10.1080/0892364, DOI 10.1080/08923649409526853;HIRUMI A, 2002, INT J E LEARNING, V1, P19, DOI DOI 10.1080/01580370600750973;HOLE G., 2003, DESIGN REPORT EXPT;JOHNSON D., 1981, EDUC RESEARCHER, V10, P5, DOI DOI 10.HTTP://WWW.JST0R.0RG/STABLE/1175627, DOI 10.3102/0013189X010001005;JONES K., 2009, EVALUATION EVIDENCE;KANUKA H, 2011, J COMPUT HIGH EDUC, V23, P143, DOI 10.1007/S12528-011-9049-4;KHALIL M., 2016, P WORLD C ED MULT HY, P1326, DOI 10.13140/RG.2.1.1733.2083, DOI 10.1016/J.IHEDUC.2016.03.002;KOCH LF, 2014, NURS EDUC TODAY, V34, P1382, DOI 10.1016/J.NEDT.2014.04.002;KOVANOVIC V, 2015, P 5 INT C LEARN AN K, P184, DOI 10.1145/2723576.2723623, DOI 10.1145/2723576.2723623;KOZMA RB, 1994, ETR&D-EDUC TECH RES, V42, P7, DOI 10.1007/BF02299087;LOCKYER L, 2013, AM BEHAV SCI, V57, P1439, DOI 10.1177/0002764213479367;LOU YP, 2006, ETR&D-EDUC TECH RES, V54, P141, DOI 10.1007/S11423-006-8252-X;LUST G, 2012, COMPUT HUM BEHAV, V28, P795, DOI 10.1016/J.CHB.2011.12.009;MA J, 2015, INTERNET HIGH EDUC, V24, P26, DOI 10.1016/J.IHEDUC.2014.09.005;MACFADYEN L. P., 2014, RES PRACTICE ASSESSM, V9, P17;MACFADYEN LP, 2010, COMPUT EDUC, V54, P588, DOI 10.1016/J.COMPEDU.2009.09.008;MARKS RB, 2005, J MANAG EDUC, V29, P531, DOI 10.1177/1052562904271199;MEHAN H, 1998, HUM DEV, V41, P245, DOI 10.1159/000022586;MILLIKEN G. A., 2004, ANAL MESSY DATA, V1;MIYAZOE T., 2010, J INTERACTIVE ONLINE, V9;MOALLEM M, 2003, ETR&D-EDUC TECH RES, V51, P85, DOI 10.1007/BF02504545;MOLENBERGHS G., 2005, MODELS DISCRETE LONG;MOORE MG, 1989, AM J DISTANCE ED, V3, P1, DOI 10.1080/08923648909526659, DOI 10.1080/08923648909526659;MORRIS L. V., 2005, INTERNET AND HIGHER EDUCATION, V8, P221, DOI 10.1016/J.IHEDUC.2005.06.009;MORRISON GR, 2014, HDB RES ED COMMUNICA, V4, P31;MUIRHEAD BRENT, 2005, INSIGHTS TEACHERS ST, P11;NELDER JA, 1977, J ROY STAT SOC A STA, V140, P48, DOI 10.2307/2344517;NETER, 2004, APPL LINEAR REGRESSI;OLIVER S., 2006, SAS MIXED MODELS;PHILLIPS R., 2012, P EDMEDIA WORLD C ED, P2861;RAMOS C, 2008, COMPUT EDUC, V50, P1174, DOI 10.1016/J.COMPEDU.2006.11.003;RHODE JF, 2009, INT REV RES OPEN DIS, V10;ROBERTS R. M., 2011, BEST INSTRUCTIONAL P;ARCHILA YMR, 2014, GIST-EDUC LEARN RES, P142;ROMERO C, 2008, COMPUT EDUC, V51, P368, DOI 10.1016/J.COMPEDU.2007.05.016;ROSARIO P, 2013, EUR J PSYCHOL EDUC, V28, P1311, DOI 10.1007/S10212-012-0167-9;RUBIN B, 2010, INTERNET HIGH EDUC, V13, P82, DOI 10.1016/J.IHEDUC.2009.10.008;SCHMID RF, 2014, COMPUT EDUC, V72, P271, DOI 10.1016/J.COMPEDU.2013.11.002;SCHRIRE S, 2006, COMPUT EDUC, V46, P49, DOI 10.1016/J.COMPEDU.2005.04.006;SIEMENS G., 2012, P 2 INT C LEARN AN K, P4;SIEMENS G., 2011, OPEN LEARNING ANAL I;SIEMENS G, 2012, EDUC TECHNOL SOC, V15, P1;SMITH G. G., 2001, JOURNAL, V28, P18;SMITH V. C., 2012, J ASYNCHRONOUS LEARN, V16, P51;STYER A. J., 2007, GROUNDED METAANALYSI;SUTTON L.A., 2001, INT J ED TELECOMMUNI, V7, P223;TALLENT-RUNNELS MK, 2006, REV EDUC RES, V76, P93, DOI 10.3102/00346543076001093;TIRRI K., 2013, INTERACTION ED DOMAI;WAGNER ED, 1994, AM J DISTANCE ED, V8, P6, DOI DOI 10.1080/08923649409526852;WANG CH, 2013, DISTANCE EDUC, V34, P302, DOI 10.1080/01587919.2013.835779;WISE A. F., 2013, P 10 INT C COMP SUPP, P534;WOO Y., 2007, INTERNET AND HIGHER EDUCATION, V10, P15, DOI 10.1016/J.IHEDUC.2006.10.005;WOODS CR, 2009, ACAD MED, V84, P1250, DOI 10.1097/ACM.0B013E3181B188AE;YACCI M, 2000, INTERACTIVITY DEMYST;YEE AH, 1971, SOCIAL INTERACTION E;ZHU E., 2003, CRLT OCCASIONAL PAPE;ZIMMERMAN BJ, 1990, J EDUC PSYCHOL, V82, P51, DOI 10.1037/0022-0663.82.1.51