| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| smith gregson and morgan 2003 | 1.62 | 0.4 | 5683 | 61 |
| smith and langston 1999 | 1.99 | 0.3 | 2992 | 46 |
| hughes and morgan 2007 | 0.01 | 0.4 | 7221 | 11 |
| smith and gray 1985 | 1 | 0.1 | 4718 | 25 |
| davidson and milligan 2004 | 0.13 | 0.6 | 6788 | 97 |
| smith et al. 2003 | 1.88 | 0.2 | 2942 | 73 |
| morgan and houghton 2011 | 0.08 | 0.6 | 3166 | 86 |
| smith and baker 1981 | 0.54 | 0.5 | 4563 | 76 |
| stumm and morgan 1996 | 1.98 | 0.7 | 7590 | 8 |
| smith & ragan 1993 | 1.45 | 0.7 | 8838 | 78 |
| wiggins and tighe 2005 | 0.65 | 1 | 7727 | 72 |
| morgan and saxton 1991 | 0.24 | 0.4 | 6842 | 80 |
| wiggins and mctighe 1998 | 1.77 | 0.1 | 1897 | 60 |
| morgenson et al. 2004 | 1.98 | 1 | 8235 | 3 |
| whitehead and dahlgren 1991 | 0.75 | 0.8 | 2440 | 23 |
| wiggins and mctighe 2005 | 1.8 | 0.8 | 8950 | 38 |
| morton and johnson 1991 | 1.46 | 0.6 | 6642 | 52 |
| smith et al. 1998 | 0.86 | 0.9 | 7707 | 99 |
| reed and sanderson 1999 | 1.46 | 0.5 | 6306 | 73 |
| morgeson et al 2007 | 0.86 | 0.6 | 8358 | 50 |
| higgins and thompson 2002 | 1.22 | 0.7 | 7239 | 6 |
| morgeson & humphrey 2006 | 0.97 | 0.6 | 5023 | 59 |
| dahlgren & whitehead 1991 | 1.92 | 0.4 | 3247 | 13 |
| griffiths et al. 2004 | 0.68 | 0.4 | 4571 | 18 |
