FORD 2009 Escape v.2 - Manual (Page 151)

child seat from side to side and forward and back where it is secured to
the vehicle. The seat should move less than one inch when you do this
for a proper installation.
If the safety seat is not anchored properly, the risk of a child being
injured in a crash greatly increases.
Seating and Safety Restraints
151
2009 Escape (204)
Owners Guide (own2002), 2nd Printing
USA (fus)