optimally , there were eleven households and two college students to test : 1 ) charles household 2 ) alburts household 3 ) kacis household 4 ) teals household 5 ) donalds household 6 ) chases household 7 ) micks household 8 ) yettas household 9 ) faras household 10 ) nikkies household and 11 ) philips household ( he lived with his adult daughter laural and her household ) .