Specification Bias Analysis of the Effects of Grouping of Observations in Multiple Regression Models.

AUTHOR Hannan ichael T.; And Others TITLE Specification Bias Analysis of the Effects of Grouping of Observations in Hultiple Re-3ression Models. INSTITUTION Vasquez Associates ltd., Milwaukee, Wis. SPONS AGENCY National Inst. of Education (DHEW)., Washington, D.C. PUB DATE Apr 75 CONTRACT NIB-c-74-0123 NOTE 33p.; Paper presented at the Anaual Meeting o American Educational Research Association (59th, Washington, D.C., April 1975)