Choose a Design Type

Select an experimental design type below to configure parameters, generate, and download a randomised design for your experiment.

Alpha Design

An alpha design (resolvable incomplete block design) as described by Patterson & Williams (1976). Used extensively in plant breeding trials. Includes a helper that proposes viable block structures.

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Latin Square Design

A Latin square design where each treatment appears exactly once in each row and once in each column. Supports multiple squares (replicates) when rows and columns are multiples of the treatment count.

Layout

Randomised Complete Block Design

A randomised complete block design where every treatment appears exactly once in each block. Treatments are randomly allocated to plots within each block independently.

Layout Blocks

Split Plot Design

A split plot design with randomised complete blocks. Main plot treatments are randomised within each block, and sub-plot treatments are randomised within each main plot. This two-stage randomisation reflects the hierarchical experimental structure.

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Two-Factor Randomised Complete Block Design

A randomised complete block design with two crossed treatment factors. All combinations of factor A and factor B levels appear once in each block and are randomly allocated to plots.

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Variable Block Sizes Design

A randomised block design where blocks can have different sizes. Control treatments appear in every block. The allocation algorithm ensures the design is connected (analysable).

Layout Blocks