1. tna::engagement
    Example data on student engagement
    csv| xlsx| json| ndjson| rda| rds
    stslist|200 x 20
  2. tna::engagement_mmm
    Example mixed Markov model fitted to the 'engagement' data
    rda| rds
    mhmm
  3. tna::group_regulation
    Example data on group regulation
    csv| xlsx| json| ndjson| rda| rds
    data.frame|2000 x 26