Experimental Research

8/11/98


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Table of Contents

Experimental Research

Experimental Research

Experimental Design

Experimental Study Steps

Research Essentials

Experimental Control

Control Methods

Physical Control

Selective Control

Statistical Control

Internal Validity

Internal Validity Factors

History

Maturation

Pre-Testing

Measuring Instruments

Statistical Regression

Differential Selection

Experimental Mortality

Interaction of Factors

External Validity

External Validity Factors

Pre-Testing

Differential Selection

Experimental Procedures

Multiple Treatment Interference

Tools to Control Validity Jeopardizing Factors

Author: Agricultural Education

Email: agedjpk@okway.okstate.edu

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