# `AggregationsTestPopulation` [interface-AggregationsTestPopulation]

| Name | Type | Description |
| - | - | - |
| `field` | [Field](./Field.md) | The field to aggregate. |
| `filter` | [QueryDslQueryContainer](./QueryDslQueryContainer.md) | A filter used to define a set of records to run unpaired t-test on. |
| `script` | [Script](./Script.md) | [ScriptSource](./ScriptSource.md) |   |