Description
Return samplePeoplePerHousehold = surveyPeople/surveyHouseholds, targetPeoplePerHousehold = targetPeople/targetHouseholds and correctedPersonEstimate = householdEstimate*samplePeoplePerHousehold/targetPeoplePerHousehold.
Household and person denominators describe different survey units. A household-size adjustment can rescale a supplied estimate, but it does not replace a probability sample, response adjustment or an exposure model.
Return samplePeoplePerHousehold = surveyPeople/surveyHouseholds, targetPeoplePerHousehold = targetPeople/targetHouseholds and correctedPersonEstimate = householdEstimate*samplePeoplePerHousehold/targetPeoplePerHousehold.
When to use this tool
Use Environmental Health Survey Household Base when checking a declared household-to-person size-ratio adjustment.
How to use the tool and how it works
- Enter surveyHouseholds, surveyPeople, targetHouseholds, targetPeople, householdEstimate. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read samplePeoplePerHousehold, targetPeoplePerHousehold, correctedPersonEstimate. Use the output convention below.
Require positive whole surveyHouseholds, surveyPeople, targetHouseholds and targetPeople. Return samplePeoplePerHousehold = surveyPeople/surveyHouseholds, targetPeoplePerHousehold = targetPeople/targetHouseholds and correctedPersonEstimate = householdEstimate*samplePeoplePerHousehold/targetPeoplePerHousehold.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| surveyHouseholds | Survey Households | Required. Safe integer; minimum 1. |
| surveyPeople | Survey People | Required. Safe integer; minimum 1. |
| targetHouseholds | Target Households | Required. Safe integer; minimum 1. |
| targetPeople | Target People | Required. Safe integer; minimum 1. |
| householdEstimate | Household Estimate | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| samplePeoplePerHousehold | Sample People Per Household | Required. Finite number. |
| targetPeoplePerHousehold | Target People Per Household | Required. Finite number. |
| correctedPersonEstimate | Corrected Person Estimate | Required. Finite number. |
{
"input": {
"surveyHouseholds": 100,
"surveyPeople": 400,
"targetHouseholds": 200,
"targetPeople": 600,
"householdEstimate": 0.3
},
"output": {
"samplePeoplePerHousehold": 4,
"targetPeoplePerHousehold": 3,
"correctedPersonEstimate": 0.4
}
}Limitations and assumptions
- The supplied householdEstimate is a finite signed magnitude on the source household basis; the formula rescales it by relative household size. This simple adjustment is not survey weighting, causal inference or a validated estimate of individual exposure prevalence.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use appropriate survey weights and population information for inference, rather than relying on a household-size correction alone.
References
Similar or alternative tools
- Household Exposure Support Share
Sum all weights into totalExposureWeight and only records with both validity flags into supportedExposureWeight.
- Environmental Health Censored Result Token
Format an explicit censored environmental result without imputing a concentration or setting a safety limit.