@booklet {1397,
	title = {Flexilevel adaptive testing paradigm: Validation in technical training},
	year = {1977},
	address = {AFHRL Technical Report 77-35 (I)},
	author = {Hansen, D. N. and Ross, S. and Harris, D. A.}
}
@booklet {1398,
	title = {Flexilevel adaptive training paradigm: Hierarchical concept structures},
	year = {1977},
	address = {AFHRL Technical Report 77-35 (II)},
	author = {Hansen, D. N. and Ross, S. and Harris, D. A.}
}
@inbook {1791,
	title = {Reflections on adaptive testing},
	year = {1976},
	note = {{PDF file, 464 KB}},
	address = {C. K. Clark (Ed.), Proceedings of the First Conference on Computerized Adaptive Testing (pp. 90-94). Washington DC: U.S. Government Printing Office.},
	author = {Hansen, D. N.}
}
@booklet {1396,
	title = {Computer-based adaptive testing models for the Air Force technical training environment: Phase I: Development of a computerized measurement system for Air Force technical Training},
	year = {1974},
	address = {JSAS Catalogue of Selected Documents in Psychology, 5, 1-86 (MS No. 882). AFHRL Technical Report 74-48.},
	author = {Hansen, D. N. and Johnson, B. F. and Fagan, R. L. and Tan, P. and Dick, W.}
}
@inbook {1790,
	title = {An investigation of computer-based science testing},
	year = {1969},
	address = {R. C. Atkinson and H. A. Wilson (Eds.), Computer-assisted instruction: A book of readings. New York: Academic Press.},
	author = {Hansen, D. N.}
}
@booklet {1399,
	title = {An investigation of computer-based science testing},
	year = {1968},
	address = {Tallahassee: Institute of Human Learning, Florida State University},
	author = {Hansen, D. N. and Schwarz, G.}
}
@booklet {1395,
	title = {An investigation of computer-based science testing},
	year = {1968},
	note = {$\#$HA68-01 (See published version.)},
	address = {Tallahassee FL: Florida State University},
	author = {Hansen, D. N. and Schwarz, G.}
}
