Classic data-set from Snijders, Tom A.B., and Bosker, Roel J. Multilevel Analysis: An Introduction to Basic and Advanced Multilevel Modeling, second edition.

mlbook_data

Format

A data frame with 3758 rows and 34 variables:

schoolnr

School ID

pupilNR_new

Student Identifier (Level 1 units)

langPOST

Student language score

ses

Student socioeconomic score, grand-mean centered (in points, M = 0))

IQ_verb

Student verbal IQ, grand-mean centered (in points, M = 0)

sex

Student binary gender, 1 = female, 0 = not female

Minority

Student minority status, 1 = minoritized, 0 = not minoritized

denomina

School-level religious denominations, 5 categories

female_dum

Dummy coded sex

female_eff

Effect-coded sex

female_CMC

Group-mean-centered of female_eff

fempct_agg

Aggregated mean female_dum for each school

Zfempct_agg

Z-scored aggregated mean female_dum for each school

ses_CMC

Group-mean-centered SES

Zses_CMC

Z-scored group-mean-centered SES

ses_agg

Aggregated mean SES for each school

Zses_agg

Z-scored aggregated mean SES for each school