M Lavoie, G Burigusa, P Maurice, D Hamel, E Turmel
Active and safe transportation of elementary-school students: comparative analysis of the risks of injury associated with children travelling by car, walking and cycling between home and school
Chronic diseases and injuries in Canada
singlecase experimental designs sceds grown popularity fields education psychology medicine rehabilitation although sceds valid experimental designs determining evidencebased practices encounter challenges analyses data one challenges missing data likely occurred frequently sceds research due repeated measurements time since missing data critical factor weaken validity generalizability study important determine characteristics missing data sceds especially conducted small number participants regard study aimed describe missing data features sceds studies detail accomplish goal 465 published sceds studies within recent 5 years six journals included investigation overall results showed prevalence missing data among sceds articles least one phase least one data point approximately 30 addition results indicated missing data rates 10 within studies missing data occurred although missing data common sceds research handful studies 5 handled missing data however methods traditional analyzing sceds data several methods proposed considering missing data ratios literature therefore missing data rates determined study results shed light analyses sceds data proper methods improving validity generalizability study results