Table 4

Fit of the 20 item PsAQoL to the Rasch Model: Best and worst fitting items

ItemLocationResidualχ2p Value
I can’t do the things I want to do−1.883−0.5810.6800.954
It’s too much effort to go out and see people0.7510.1202.3280.677
I take it out on people close to me0.5280.6152.3460.673
I feel like a prisoner in my own home2.4422.0002.7840.595
I’m unable to join in activities with friends or family0.6090.3152.8060.591
It takes me a long time to get going in the morning−1.626−0.4826.2050.184
I am easily irritated by other people0.9121.4186.3330.176
I have to keep stopping what I am doing to rest−1.256−0.1417.9680.093
I have to limit what I do each day−1.9600.5618.2400.083
I often get angry with myself−0.3932.20612.0410.018