Miscellaneous functions for (1) data management (e.g., grandmean and groupmean centering, coding variables and reverse coding items, scale and cluster scores, reading and writing Excel and SPSS files), (2) descriptive statistics (e.g., frequency table, cross tabulation, effect size measures), (3) missing data (e.g., descriptive statistics for missing data, missing data pattern, Little's test of Missing Completely at Random, and auxiliary variable analysis), (4) multilevel data (e.g., multilevel descriptive statistics, withingroup and betweengroup correlation matrix, multilevel confirmatory factor analysis, levelspecific fit indices, crosslevel measurement equivalence evaluation, multilevel composite reliability, and multilevel Rsquared measures), (5) item analysis (e.g., confirmatory factor analysis, coefficient alpha and omega, betweengroup and longitudinal measurement equivalence evaluation), and (6) statistical analysis (e.g., confidence intervals, collinearity and residual diagnostics, dominance analysis, between and withinsubject analysis of variance, latent class analysis, ttest, ztest, sample size determination).
Package details 


Author  Takuya Yanagida [aut, cre] 
Maintainer  Takuya Yanagida <takuya.yanagida@univie.ac.at> 
License  MIT + file LICENSE 
Version  0.6.5 
Package repository  View on CRAN 
Installation 
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