Construction of an experimental sequential item test (Research Memorandum 60-1). Washington DC: Personnel Research Branch, Department of the Army.
. (1960). . (1964).
An exploratory study of branching tests (Technical Research Note 188). Washington DC: US Army Behavioral Science Research Laboratory. (NTIS No. AD 655263).
. (1967). Psychometric problems with branching tests. In Paper presented at the annual meeting of the American Psychological Association.
. (1969). A comparison of computer-simulated conventional and branching tests. Educational and Psychological Measurement, 31, 125-136.
. (1971). Development of a programmed testing system (Technical Paper 259). Arlington VA: US Army Research Institute for the Behavioral and Social Sciences. NTIS No. AD A001534).
. (1974).