Mission:
1.Check the data base of the p't and help 蕙君invite p't to participate her cognition treatment!
2.translation about the second article,and find out some statistical method!
個人分數之正確性
測量標準誤(Standard error of measurement, SEM)之估計，來推估真實分數
測量標準誤之觀念，類似於統計之常態分配，即一個人之真實分數可透過許多次類似的測驗，以平均數代表其真實分數，而標準差就是每次測驗所得分數之誤差範圍。然而在實際應用上，我們並無法對每個受測者進行如此多次之測驗，所以需透過群體之標準差與信度係數來估計出測量標準誤。
Bland-Altman plot:
A scatterplot of variable means plotted on the horizontal axis and the differences plotted on the vertical axis which shows the amount of disagreement between the two measures (via the differences) and lets you see how this disagreement relates to the magnitude of the measurements. This plot includes approximate 95% limits (based on an assumption of normal differences). If differences observed in this plot are not deemed scientifically (or clinical) important (according to the researcher’s own expertise), this is a confirmation of agreement. (The decision as to what constitutes a clinically important difference should be made in advance of the analysis.)
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