Disability Insurance Amendments of 1979

[AI summary unavailable — showing source text] Disability Insurance Amendments of 1979 - Amends title II (Old-Age, Survivors, and Disability Insurance) of the Social Security Act to reduce the maximum amount of monthly benefits payable under such title on the basis of wages and self-employment income to the smaller of: (1) 75 percent of an individual's average indexed monthly earnings; or (2) 150 percent of an individual's primary insurance amount. Amends the procedure for computing the primary insurance amount of an individual to reduce the number of years of low earnings which must be discarded in determining the number of an applicant's benefit computation years in cases in which an individual ceased earning income before attaining age 45 because of a disability. Requires the Commissioner of Social Security to develop and carry out experiments and demonstration projects designed to compare various methods of treating the work activity of disabled beneficiaries under title II, including reductions in benefits based on earnings designed to encourage disabled beneficiaries to work. Requires the Commissioner to report to Congress on such projects. Excludes from an individual's earnings, in determining whether an individual can e…