TITLE: Eq 3a.1: Empty Between-Person Model DATA: FILE = MPLUS_Chapter3a.csv; FORMAT = FREE; DATA WIDETOLONG: WIDE = outcome1-outcome2; LONG = outcome; IDVARIABLE = PersonID; REPETITION = time1; VARIABLE: NAMES = PersonID group outcome1 outcome2; USEVARIABLES = outcome; MISSING = ALL (-9999); CLUSTER = PersonID; ANALYSIS: ESTIMATOR = ML; PROCESSORS = 4; TYPE = TWOLEVEL RANDOM; MODEL: %WITHIN% outcome; %BETWEEN% [outcome]; outcome@0;