#Graph digitizer graphclick software
#Graph digitizer graphclick series

In the studies conducted on SCEDs, repeated measurements are performed under standard conditions, and the changes between the baseline and intervention phases are visually analyzed using graphical data (Kennedy, 2005 Riley-Tillman & Burns, 2020 Tekin-Iftar, 2018). The research on SCEDs can be conducted with a single participant or through the individual evaluation of multiple participants’ performances, and these performances are shown with graphical data. Single-case experimental designs (SCEDs), which are increasingly used in the fields of education and psychology, are unique methods that allow questioning the causal and functional relation between dependent and independent variables among the participants or between conditions (Kratochwill et al., 2010 Maggin et al., 2017 Maggin & Odom, 2014 Tekin-Iftar, 2018). Based on the obtained results and considering the data extraction process, we presented various recommendations for the researchers that will use the PlotDigitizer program for the quantitative analysis of single-case graphs. The results showed that PlotDigitizer could be an alternative to other programs as it is free and can run on many current and outdated systems, and it is valid and reliable as it is nearly perfect. Based on our sampling, we calculated intercoder and intracoder Pearson correlation coefficients. Besides, using the values we digitized, we recalculated the 23 effect sizes presented in the original articles for validity analysis.

#Graph digitizer graphclick series

We performed the digitization of 6.846 data points on three different computers using 15 hypothetical graphs with 20 data series and 186 graphs with 242 data series from 29 published articles to accomplish the goal.

#Graph digitizer graphclick software

In this study, we aimed to analyze the validity and reliability of the PlotDigitizer software program, which is widely used in literature and an alternative to other data extraction programs, on computers with different operating systems. Researchers typically use data extraction software programs to extract raw data from the graphs in articles. Access to raw data of graphs presented in original articles to calculate the effect size of single-case research is a challenge for researchers conducting studies such as meta-analysis.