Table 5.

Test-re-test reliability of total and factor scores from EFA before and after scaling

Item scaling & scoring	Raw Total, Unscaled	1st PC Total, Scaled	Scaled Fac1 Impacta	Scaled Fac2 Hearing	Scaled Fac3 Ear symptoms
Scaled and scored as factors	0.989	0.983	0.968	0.924	0.944
Scaled, but scored as discrete item sets using high-loading items only	–	–	0.985	0.932	0.963

All reliabilities exceed the requirement for practical application, even those of the factors. Wider implications of reliability are addressed in the Discussion

^a Daily activities and healthcare uptake; name abbreviated for formatting