Hi Sara, thanks for the video. Can this analysis be applied to 3 measures? So I repeated a certain measures 3 time. regardless ICC, which other reliability analysis can I applied? Thank you for your replay.
what version of excel is this as I cannot seem to create the plot despite following everything you have said in getting the data in order.. I have version 2016
why did'nt you use the one-sample t-test before making the Bland-Altman plot? . As ı know, ıf there is significant difference between these two measurements, we cant perform the bland altman. ıt measns there is no useful level of agreemnent between two measurements
Right click on the X-axis, click [format axis], scroll down on the left hand side to [labels] and then click the drop down and select [low]. This should then move the X axis to the bottom of the graph :)
I have a task in which I have to compare 2 methods using Bland-Altman. I have 2 replicates in each group. How am I supposed to plot a Bland-Altman curve with all of this? I generally dont have a hard time with excel, but this one has gotten the better of me.
Hi Calle. When you say you have 2 replicates in each group does that mean your have two measurements back to back, or two time points of the measurements?
Hi Shephard. 95% of a normally distributed population lies within 1.96 standard deviations of the mean. 1.96 is the approximate value of the 97.5 percentile point of the normal distribution. Since we would expect most differences in bias to lie within 2 standard deviations, that's why 1.96 is chosen.... Limits of agreement is just 2 standard deviations from bias. I hope this helps!
She is just using these numbers (from 0 to 2500) just to draw the line making sure it is long enough to fit all the x data. Adjust this number to your range of data and you'll be ok.
Brilliant but towards the end my graph did not look like yours...lol...again be slow ...people like us just learned English the other day....I would love to see a graph having vertical value against horizontal value of the mean of measurements
