We have used a distorted wave model suggested by Singh in calculating the angular correlation
parameters f... and R for electron-hydrogen collision. In this model the initial state distorted
wave is generated by the static potential in the initial state and the final state distorted wave is
generated by a potential taken as the sum ofone.:}}aif of the initial state static potential plus onehalf
of the final state static potential. The results have been compared with other theoretical and
experimental results.