  If the Higgs boson is composite, signs of this compositeness should appear
via a formfactor-like suppression of Higgs scattering cross sections at
momentum transfers above the compositeness scale. We explore this by computing
the cross section for e+e- ---> ZH (Higgsstrahlung) in a warped
five-dimensional gauge-Higgs unification model known as the Minimal Composite
Higgs Model (MCHM). We observe that the Higgsstrahlung cross section in the
MCHM is strongly suppressed compared to that in the Standard Model at
center-of-mass energies above the scale of the first Kaluza-Klein excitations,
due to cancellations among the contributions of successive Z boson Kaluza-Klein
modes. We also show that the magnitude and sign of the coupling of the first
Kaluza-Klein mode can be measured at a future electron-positron collider such
as the proposed International Linear Collider or Compact Linear Collider.
