| 释义 |
- References
The instrument effect is an issue in experimental methodology meaning that any change during the measurement, or, the instrument, may influence the research validity.[1] For example, in a control group design experiment, if the instruments used to measure the performance of the experiment group and the control group are different, a wrong conclusion about the experiment would be reached, the research result would be invalid.[1] References1. ^1 {{cite book|author=Larry B. Christensen|title=Experimental methodology|year=2007|publisher=Pearson/Allyn & Bacon|isbn=978-0-205-48473-7|page=377}}
1 : Design of experiments |