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Research Methods
Research Methods: Population Estimates, AICP Nov 2022 Test
| Question | Answer |
|---|---|
| Population Estimation Types (6) | 1. Linear Method; 2. Exponential and Modified Exponential Method, 3. Symptomatic Method, 4. Step-Down Ratio Method, 5. Distributed Housing Unit Method, 6. Cohort Survival Method |
| Linear Method | uses the change in population (increase or decline) over a period of time and extrapolates this change to the future, in a linear fashion (i.e. grows by 1,000 people every year) |
| Exponential and Modified Exponential Method | uses the rate of growth (or decline), i.e., the percentage change in population over a period of time to estimate the current or future population - percent change extrapolated into the future. Modified = assumes at some point growth stops |
| Symptomatic Method | uses any available data indirectly related the population size, such as housing starts, or new driver's licenses. |
| Step-Down Ratio Method | uses the ratio of the population in a city and a county (or a larger geographical unit) at a known point in time, such as the decennial Census. |
| Distributed Housing Unit Method | uses the Census Bureau data for the number of housing units, which is then multiplied by the occupancy rate and persons per household. |
| Cohort Survival Method | Most accurate but requires the most time. Uses current population plus natural increase (births less deaths) and net migration (in-migration less out-migration) to calculate a future population for men and women in specific age groups. |
| Natural Increase | Difference between the number of children born and the number of people who die during the one-time interval. |
| Death Rate | Number of deaths per 1,000 people. |
| Crude Birth Rate | Number of births per 1,000 people |
| General Fertility Rate | Number of babies born per 1,000 females of childbearing age. |
| Age Specific Fertility Rate | Number of babies born per 1,000 females in a given age group. |
| Net Migration | Difference between the people moving in and the number of people moving out. In-migration minus out-migration/ population of area |
| In-Migration | Number of people moving into a location. |
| Out-Migration | Number of people living in an area. |
Created by:
cristinemshoff
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