Intro to Pop. Studies Flashcards
(19 cards)
define population studies
The scientific study of human populations and how population is affected by births, deaths, and migration (Pressat 1985)
what are the three pillars of population studies, and what is the one sidebar
fertility, mortality, and migration
sidebar: morbidity (illness)
what is a population
group of people sharing certain common features
define a “human population”
geographically bounded, with temporal continuity
what is formal demography?
the quantitative study of human populations in terms of growth, distribution, and development
biosocial vs sociocultural
biosocial refers to the age, sex, and race of people
sociocultural refers to (their actions) marital status, education, occupation
demographic balancing equation, what is the formula
Pop ∆ = (B - D)+ Net Migration
Pop (t+1) = Pop(t) + CRNI + Net Migr.
open vs closed population
open: population that allows free inflow and outflow of people (e.g. Alberta, Ontario)
closed: population with no net migration (e.g. the world, Earth)
what are state transitions
society progresses through many states in their lifetime (childless, parent of 1, empty nester)
this determines peoples’ responsibilities and obligations
T or F: The intersection of multiple statuses constitutes a multi-state classification
True!
distinguish repeatable and non-repeatable states
repeatable ones: married, divorced, employed
non-repeatable (absorbing state): death
define absorbing state in state transitions
once entered, it cannot be left
after a person enters that stage, their condition is no longer tracked/updated
e.g. death, terminally ill
what determines states
states are probabilistic occurrences, meaning they are influenced by biosocial and sociocultural factors
demographic rates are aggregate manifestations of individual state transitions
what are demographic rates
take the # of occurrences in the numerator and the # of people exposed to that risk/event during a given time period
what is the composition of the denominator in demographic rates?
of people exposed
& amt. of time exposed
what is person-years exposure?
this is the amount of people that were actually exposed to the event/risk during the analzyed time period
adds/subtracts people based on exposure to that risk
difference between percentage ∆, percentage point ∆, and proportion ∆
percentage ∆ is the End/Beg. - 1
pct point ∆ is difference b/w two percentages (5.2% - 5.0% = 0.2% pct point ∆)
proportion change is the percentage divided by 100
what is reclassification in demographics
changes in the identification/criteria for population figures, without any change in the underlying figures
e.g. over 2000-2010, the US expanded its urban population range which explained how the urban pop. grew so much over that period
