পদ্ধতির তুলনা করুন

	ব্লকড ল্যাবরেটরি এক্সপেরিমেন্ট	ফ্যাক্টোরিয়াল এক্সপেরিমেন্ট
ক্ষেত্র	পরীক্ষামূলক নকশা	পরীক্ষামূলক নকশা
পরিবার	Process / pipeline	Process / pipeline
উদ্ভবের বছর	1926–1935	1926–1935
প্রবর্তক	Ronald A. Fisher	Ronald A. Fisher
ধরন	Controlled experimental design with blocking	Quantitative experimental design
মৌলিক উৎস	Fisher, R. A. (1935). The Design of Experiments. Oliver and Boyd.	Fisher, R. A. (1935). The Design of Experiments. Oliver and Boyd.
অপর নাম	blocked lab experiment, laboratory randomized block design, RBD laboratory study, blocked within-lab experiment	factorial design, factorial ANOVA design, multi-factor experiment, crossed-factor design
সম্পর্কিত	5	6
সারসংক্ষেপ	A blocked laboratory experiment is a controlled laboratory study in which experimental units are grouped into homogeneous blocks before treatment assignment, and treatments are then randomly assigned within each block. Blocking removes the influence of a known nuisance variable — such as participant batch, equipment run, or testing day — from the error term, increasing the precision of treatment comparisons without expanding sample size.	A factorial experiment is an experimental design in which two or more independent variables (factors) are manipulated simultaneously, and every combination of their levels is tested. Introduced by Ronald Fisher in the 1920s–1930s, it is the standard approach whenever a researcher needs to detect not only the main effect of each factor but also whether the effect of one factor depends on the level of another — the interaction effect.