If new particles are discovered, it will be important to determine if they
are the supersymmetric partners of standard model bosons and fermions.
Supersymmetry predicts relations among the couplings and masses of these
particles. We discuss the prospects for testing these relations at a future
e+e− linear collider with measurements that exploit the availability of
polarized beams.Comment: Talk presented at DPF'94, Albuquerque, New Mexico, Aug 2-6, 1994, 6
pages, Latex with world_sci.sty, 3 figures available upon request,
SLAC-PUB-6662. (text with encapsulated figures available in ps form by
anonymous ftp from preprint.slac.stanford.edu, directory
pub/preprints/hep-ph/9409
