Demography is the statistical study of populations and their characteristics, such as births, deaths, migrations, consequences of changes, etc.

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Extracting meaningful demographic data from ordinal / Likert responses in SPSS

I'm currently working on the findings of my Masters dissertation where I've defined hypotheses, created a questionnaire, and then testing whether a relationship exists between different ordinal ...
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Independence of sexes of children born to a couple

Suppose $100p\%$ of babies born are male. Sometimes one reads that $p\approx 0.505$ or something like that. If a couple has $n$ children, it is often assumed that the sex of each child is ...
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How can assumptions on TFR and life expectancy at birth be used in population projection?

I was reading a report on population projection using cohort component method. There the authors have only stated their assumptions regarding the TFR (total fertility rate) and life expectancy at ...
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Bhattacharyya Distance for Age/Gender Groups?

I'm calculating distances for groups based on Age/Gender Compositions (to rank their similarity in demographic composition.) I'm working with the following: Men 18-34, Men 35-49, Men 50-64, Men 65+, ...
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37 views

US Population Hypothesis Test

I’m hoping someone can give me some tips on the test I have in mind for my data. I have data which is samples of Americans from various zip codes throughout the US. In my data I assume if someone has ...
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Restoration of gender balance after wars - what principle underlies this?

I am wondering what is the statistical principle that underlies the following observation. After every war in history, the male population of a given region would severely decline, tipping the ...
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Law of the Seven Degrees of Separation [closed]

I would like to know whether any empirical studies have been conducted on the so-called "Law of the Seven Degrees of Separation", a statement that any two people in the world are separated by at most ...
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26 views

Meaning of weights in calculating the Myer's blended index

I am struggling to understand the meaning of the weights (coefficients) of the Myer's blended index described in section 3.2 of this PDF. Can someone explain me the reason behind using such ...
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36 views

Taking into account population size differences in chi-squared test

I have a group of patients who live in London. They come from the 33 London local authorities and I want to know whether there is any significant variation in where they live. In other words, I want ...
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102 views

Analysis where dependent variables are proportions

I have a set of demographic data (age, race, social class, etc.) for selected geographic areas. These independent variables are each proportional in each type, i.e. Area A: White 70%, Black 20%, Asian ...
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38 views

Is this a confounding interaction: using demographic data in a fractional factorial design?

I've created and run a choice experiment (conjoint analysis) using a fractional factorial design 3 x 3 x 3 x 3 (four factors with three levels each). I also collected some demographic data (age, ...
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73 views

Population Projection, Forecast, Prediction

I am frequently reading some terminology But not understanding their difference . Those are : $\bullet$Difference between ...
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133 views

Does it make sense to impute year of birth?

This is data cleaning and preparation stage question for me. I apologize if the question is basic, but I am a beginner. I have a dataset of a bit less than 4500 records. This is a survey and ...
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Probability of moving house (non-independence problem)

We are analyzing a dataset where we are looking at the probability of individuals moving house, and the factors that predict moving. The problem is that a lot of people are married, and (usually) if ...
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731 views

What is the reason for getting so many ”Warnings: NAs produced” while using the function ”pop.sim” in the ”demography” package

When so many warnings, what does it in fact means? Is there a problem with the validity of the stochastic forecasting models? I am doing a stochastic forecasting of a small population with approx. ...
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1answer
172 views

Is there a population size limit for using the R package Demography when doing stochastic population forecasting

Is it possible to do stochastic population forecasting with the R package Demography when the population size is between 10k and 20k? I have data from year 1985 to 2012 for population, deaths and ...
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102 views

Measuring change of participation level in a population after a policy change

I would like to measure the change of a policy in a community, that is, check whether there was a change after the new policy was applied. The old policy required that people had to give away a right ...
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185 views

Residual from Functional Demographic model for fertility

I'm trying to fit a functional demographic model (fdm) to fertility rates using the demography package in R. When I've plotted ...
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1answer
140 views

Measuring representativeness of a (non-random) selection

I am looking for a numerical value that expresses how representative a (non-random in this case) sample from a population is regarding the distribution of a certain attribute. Take for example, the ...
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85 views

Estimating demographics from internet activity

I'm looking for research papers on estimating demographic information (age, wealth, location, gender etc.) out of internet activities (preferably social network activity or browser history). Where ...
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108 views

What statistical measures are recommended for mixing of population samples?

I want to know what statistics should be used to measure the mixing of languages in cities in a country/state. I have samples from individuals and know the language they speak and the city they live ...
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194 views

How to help people understand “…per 100,000”?

It's well known that members of the public have difficulty comprehending numbers over a certain size. A common tricky issue for people communicating demographic trends is helping people make sense of ...
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694 views

Calculating life expectancy in Stata

I've been looking for resources on calculation of life expectancy uising Stata. Combing Google results so far I've only been able to locate this module: LXPCT_2: Stata module to calculate ...