  We describe several experimental methods to quantify dynamics in electron
glasses and illustrate their use in the glassy phase of crystalline
indium-oxide films. These methods are applied to study the dependence of
dynamics on temperature and on non-ohmic electric fields at liquid helium
temperatures. It is shown that over a certain range of temperature the dynamics
becomes slower with temperature or upon increasing an applied non-ohmic field,
a behavior suggestive of a quantum-glass. It is demonstrated that non-ohmic
fields produce qualitatively similar results as raising the system temperature.
Quantitatively however, their effect may differ marekdly. The experimental
advantages of using fields to mimic higher temperature are pointed out and
illustrated.
