Table III Rotated Factor Structure for Risk Factors (n = 175)

		Factor 2 Not Grouping
	Factor 1 Not Working in a	Cows and Applying Milking
Actions That Can Increase the Risk of CM (Perceived	Precautionary Way to	Order to Prevent Spread of
Risk)a	Prevent Mastitis Occurring	Existing Infection
Cows in milk not grouped according to their udder-health status		0.561
Gloves not worn by milking staff during every milking	0.613
Dirty udders are not washed with water or dried before attaching the cluster	0.489
All cows not treated with postmilking teat disinfectant	0.517
Clusters not rinsed with warm water after milking cows with CMb	0.464
Cows with CM not milked last		0.909
Cows with high SCCc not milked last		0.851
Cows not kept standing at least 30 minutes after milking	0.470
Teat-cup liners not replaced according to manufacturer’s recommendations	0.609
Dry cow therapy not administered in consultation with veterinarian	0.609
Udder-health status of the herd not regularly discussed with veterinarian	0.682
Dry cows not fed a mineral feed that covers their needs	0.576
Calving not in single pens cleaned between calvings	0.656
Feeding plans not continuously reviewed and revised when needed	0.595
Cronbach’s alpha	0.846	0.834
Range, item-to-item correlation	0.157–0.568	0.516–0.809
Range, item-to-total correlation	0.565–0.703	0.826–0.918

^aUnderlying scale: 1–5.

^bClinical mastitis.

^cSomatic cell count.

Note: Only significant loadings displayed.