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	Faktoriellt fältexperiment	Fullständig faktoriell design
Ämnesområde	Försöksplanering	Försöksplanering
Familj	Process / pipeline	Process / pipeline
Ursprungsår	1920s–1935 (Fisher's foundational work); widely applied through 20th century	1926 (Fisher's foundational paper); codified by the 1950s–1960s
Upphovsperson	Ronald A. Fisher (factorial principle); extended to field settings in agricultural and social sciences	Ronald A. Fisher
Typ	Experimental design	Experimental design
Ursprungskälla	Fisher, R. A. (1935). The Design of Experiments. Oliver and Boyd.	Box, G. E. P., Hunter, J. S., & Hunter, W. G. (2005). Statistics for Experimenters: Design, Innovation, and Discovery (2nd ed.). Wiley-Interscience. ISBN: 978-0471718130
Alias	factorial design in the field, field factorial design, multi-factor field trial, factorial field trial	full factorial design, complete factorial design, 2^k factorial design, FFD
Närliggande	5	6
Sammanfattning	A factorial field experiment applies factorial experimental design — simultaneously manipulating two or more independent factors across all combinations of their levels — in a real-world field setting rather than a controlled laboratory. It allows researchers to estimate both main effects and interaction effects of multiple factors on an outcome under ecologically valid conditions, making findings directly relevant to practice.	A full factorial experiment runs every possible combination of all chosen factor levels, making it the gold standard for simultaneously estimating main effects, two-way interactions, and higher-order interactions among multiple independent variables. Introduced through Ronald Fisher's foundational work on factorial designs in the 1920s and systematised by Box, Hunter, and Montgomery, it provides complete information about how factors act individually and in combination on an outcome.