i wanted use function sem (with package lavaan) on data in r : model1<- 'transfer~amotivation+gender+age amotivation~gender+age transfer 4 questions 5 point likert scale amotivation: 4 questions 5 pint likert scale gender: 0 (=male) , 1 (=female) age: different ages and got next error: in getdatafull (data= data, group = group, grow.label = group.label,: lavaan warning: observed variances (at least) factor 100 times larger others; please rescale is familiar error? influence results? have change anything? don't know error means. your scales not equivalent. gender variables constrained either 0 or 1. amotivation constrained between 1 , 5, age less constrained. created sample data gender, age, , amotivation. can see variance age variable on 4,000 times higher variance gender, , 500 times higher sample amotivation data. gender <- c(0,1,1,1,0,0,1,1,0,1,1,0,0,1,1,1) age <- c(18,42,87,12,24,26,98,84,23,12,95,44,54,23,10,16) set.seed(42) amotivatio...