No measurement, and thereforeno experiment, can be perfectly precise.
The matrix and vector for this experiment are:
In contrast, exploratory experiments approach phenomena withoutrelying on a particular theoretical model. Thus, sometimes atheoretical framework for an experiment consists of phenomenologicaltheory alone. Karaca argues that experiments with deep-inelasticelectron-proton scattering in the late 1960s and early 1970s areexample of such weakly theory-laden experiments. The application ofmerely phenomenological parameters in the experiment resulted in thevery important discovery of the composite rather than point-likestructure of hadrons (protons and neutrons), or the so-called scalinglaw. And this eventually led to a successful theoretical model of thecomposition of hadrons, namely quantum chromodynamics, or thequark-model of strong interactions.
Design an experiment to test the hypothesis
The most famous example of a robust experimental result is thenumerical value obtained for Avogadro's number (6.022 x1023) at the beginning of the 20th Century by using no lessthan thirteen independent methods according to the physicist JeanPerrin (Nye 1972). Salmon (1984) has argued that this provided a strongjustification for belief in the existence of atoms by way of acommon-cause argument. On Salmon's view, the existence of atoms can beinferred as the common cause of Perrin's thirteen differentdeterminations of Avogadro's number. Others have construed robustnessarguments more along the lines of Putnam's “no miracle” argument forscientific realism, according to which the assumption of the reality ofsome theoretical entities is the best explanation for the predictivesuccess of theories or, in the case of robustness, for the agreement ofexperimental results (Weber 2005, Ch. 8; Stegenga 2009).
The Scientific Method | Experiment
For further discussion see (Franklin 1993b)). Although Franklin’sepistemology of experiment is designed to offer good reasons forbelief in experimental results, they are not a set of rules. Franklinregards them as a set of strategies, from which physicists choose, inorder to argue for the correctness of their results. As noted above,the strategies offered are neither exclusive or exhaustive.
Science Fair Experiment - Cool Science Projects
This example illustrates how treatments can be allocated to two blocks for an unreplicated design. Consider the unreplicated design to investigate the four factors affecting the defects in automobile vinyl panels discussed in . Assume that the 16 treatments required for this experiment were run by two different operators with each operator conducting 8 runs. This experiment is an example of an incomplete block design. The analyst in charge of this experiment assumed that the interaction was not significant and decided to allocate treatments to the two operators so that the interaction was confounded with the block effect (the two operators are the blocks). The allocation scheme to assign treatments to the two operators can be obtained as follows.
The defining contrast for the design where the interaction is confounded with the blocks is: