Abram G. Bayroff, 73, an industrial psychologist who helped develop the Armed Forces Qualification Test, whis is used in selecting recruits for the military services, died of cancer Jan. 25 at Northern Virginia Doctors Hospital.

Dr. Bayroff began his career with the government with the old War Department in 1946. At the time of his retirement in 1970 after a stroke, he was task leader of the Enlisted Manpower Task Force at the Army Research Institute.

In addition to his work on the development and continuing study on the qualification test, Dr. Bayroff played a major role in devising the Armed Services Vocational Aptitude Battery. This test is used to assign recruits to military jobs for which they are suited by aptitude or previous training.

Dr. Bayroff was born in Bayonne, N.J. He earned a bachelor's degree from New York University and master's and doctoral degrees in psychology from the University of North Carolina. He taught at the University of California at Berkeley and the University of North Carolina before moving to Washington and beginning his government career. He was a resident of Arlington at the time of his death.

Dr. Bayroff was a past president of the D.C. Psychological Association.

Survivors include two sisters, Mollie Bayroff of Bayonne, and Rosalie Frank of Ocean, N.J.