DEMOGRAPHY Flashcards
It is empirical, statistical, and mathematical study of human population
Demography
It is the scientific study of human populations with respect to size, structure and development
Demography
Give the three foci in demography
- Population size
- Composition of the population
- Distribution of the population
It is the mathematical and statistical study of the size composition and spatial distribution of human populations and of changes over time in these aspects through the operation of five processes of:
- Fertility
- Marriage
- Mortality
- Social Mobility
- Migration
Demography
True or False:
Demography is used to determine the number and distribution of a
population in a certain area for planning, priority setting and for purposes of fund allocation
True
True or False:
Demography is used to determine growth (or decline) and dispersal of population in the past.
True
True or False:
Demography is used to establish a “causal relationship” between
population trends and various aspects of social organization.
True
True or False:
To predict future developments and their possible consequences. It also serves as denominators for health indicators
True
True or False:
Demography is used in setting up targets of coverage of activities and norms for assignment of health facilities/staff/funds.
True
Tools used in Demography
- Counts
- Ratio
- Proportion
- Rates
It is the absolute numbers of a population or any demographic event occurring over a specified period, area and time
Counts
An example of this tool is population size, number of males in the Philippines
Counts
It is a single number that represents the relative size of two numbers
Ratio
It is a special type of ratio in which the numerator is part of the denominator
Proportion
It measures the amount of change (no. of new events) in a given period of time.
Rates
Enumerate the sources of demographic data
- Census
- Sample surveys
- Vital registration systems
- Continuing population registers
It is the total process of collecting, compiling and publishing demographic, economic and social data pertaining to all persons in the country at specified time.
Census
True or False:
There are two ways of allocating people during census-taking
True
A method in census allocation wherein it assigns the individuals to the place of their usual residence regardless of where they were actually enumerated during census
De jure method
A method in census allocation wherein people are allocated to the areas where they were physically present at the census date regardless of where they usually live.
De facto method
A source of demographic data wherein demographic information is obtained based on a sample of the population
Sample surveys
A source of demographic data wherein it continuously record vital events like births, adoption, deaths, marriages and annulments
Vital registration system
A source of demographic data wherein it provide continuously updated on particular events that occur to each individual and selected characteristic of this individual
Continuing Populations registers
Enumerate the information obtained in a census
- Geographic
- Household or family information
- Personal characteristics
An information obtained in a census that refers to region, province, municipality/ city, barangay
Geographic
An information obtained in a census that refers to number of households; number of household members
Household or family information
An information obtained in a census that refers to sex, age, marital status, place of birth, citizenship
Personal characteristics
It pertains to actual population size and changes or trends in population size.
Population size
It refers to the location of the population in geographic subdivisions of a given area
Distribution of the Population
It pertains to measurable characteristics of the population
Population composition
A type of sex composition that compares the number of males to the number of females
Sex ratio
A type of sex composition that compares the sex ratio across different categories/ levels of another characteristics
Sex structure
It is a single index that summarizes the age distribution of a population and it also indicates whether the population is young or old
Median age
Provides an index of age-induced economic drain on manpower resources
Age-dependency ratio
True or False:
Fertility
Urban-rural differences
peace and order situation
Cultural practices
are factors affecting age composition
True
It is a graphical presentation of the age and sec composition of the population. It also enables one to explain and describe the demographic trends of the population in the past
Population pyramid
It is a pyramid with a wide base
Expansive
it is a pyramid with a narrow base
constrictive
It is a pyramid with a somewhat equal proportion
stationary
It is the difference between the number of births and deaths which occured
Natural inrease
True or False:
a. Sex ratio at birth
b. Differences between sexes in death rates
c. Geographic, economic conditions
d. Occupation
e. Differences between sexes in net migration
rates
are the determinants of sex composition of a population
True
It is the average number of years a newly born infant is expected to live under the mortality conditions for a given year
Life expectancy at birth
it is the difference between the crude birth rate and the crude death rate of a specific population within a specified time period,
usually a year
Rate of Natural Increase
it measures the average number of people added to the population each year
Absolute increase per year
it is the actual difference (i.e., the absolute increase) between two census counts expressed in percent of the initial population size
Relative increase
it utilizes results of two census counts to quantify the amount of change in population size during a specified time period.
Annual Rate of Growth
it refers to population estimates made on any date intermediate to two censuses and take the results of these census into account
Intercensal estimates
Estimates of population size on any date in the past or during a current date following a census; use the results of the most recent census and possibly earlier censuses into account, but not later censuses
Postcensal estimates
Population estimates made on any date following the last census for which no current reports are available
Projections
also known as the balancing equation
Component method or Inflow – Outflow Method
assumes an equal amount of increase every year
Arithmetic method
it assumes that the population increase (or decreases) at the same rate over each unit of time
Geometric method
it assumes a constant rate of increase (or decrease) and the population is increasing
continuously, i.e., a constant rate of change is applied at every infinitesimal amount of time
Exponential method
