@psycientist Then, it means there is a mismatch between persons and items (e.g. items are too easy for this population). In Rasch Measurement/IRT framework, you can graphically investigate if this is the case with "Person-Item Threshold Distribution" graph
RT @SPHeREprogramme: Our colleagues Margaret Curtin, @John_P_Browne @IvanJPerry & @astaines recently published in @bmcpediatrics https://t.…
RT @SPHeREprogramme: Our colleagues Margaret Curtin, @John_P_Browne @IvanJPerry & @astaines recently published in @bmcpediatrics https://t.…
Our colleagues Margaret Curtin, @John_P_Browne @IvanJPerry & @astaines recently published in @bmcpediatrics https://t.co/VWqckNHWXX