[Source: Developmental Phonological Disorders]

I have been looking for an opportunity to try out this neat spread sheet for creating scatterplots as an alternative to the standard bar graph as a way of presenting the results of a treatment trial. This week the American Journal of Speech-Language Pathology posted our manuscript “A randomized trial of twelve-week interventions for the treatment of developmental phonological disorder in francophone children”. In the paper we compare outcomes (speech production accuracy and phonological awareness) for the four experimental groups in comparison to a no-treatment group using the standard bar graphs.Weissberger et al disparage this presentation as “visual tables” that mask distributional information. They provide a spreadsheet that allows the researcher to represent data so that the underlying individual scores can be seen. I am going to show some of the speech accuracy data from the new paper that Françoise and I have just published in this form.
Read the Rest of this Article/Paper on Developmental Phonological Disorders