Overview If current trends continue, the demographic profile of the United States will change dramatically by the middle of this century, according to new population projections developed by the Pew Research Center.
April 2, The Future of World Religions: Over the next four decades, Christians will remain the largest religious Research population, but Islam will grow faster than any other major religion.
If current trends continue, by … The number of Muslims will nearly equal the number of Christians around the world.
The global Buddhist population will be about the same size it was inwhile the Hindu and Jewish populations will be larger than they are today. India will retain a Hindu majority but also will have the largest Muslim population of any country in the world, surpassing Indonesia.
In the United States, Christians will decline from more than three-quarters of the population in to two-thirds inand Judaism will no longer be the largest non-Christian religion.
Muslims will be more numerous in the U. Four out of every Research population Christians in the world will live in sub-Saharan Africa. These are among the global religious trends highlighted in new demographic projections by the Pew Research Center.
Islam was second, with 1. If current demographic trends continue, however, Islam will nearly catch up by the middle of the 21st century. As a result, according to the Pew Research projections, by there will be near parity between Muslims 2.
The global Buddhist population is expected to be fairly stable because of low fertility rates and aging populations in countries such as China, Thailand and Japan.
Incensuses and surveys indicate, there were about 1. At the same time, however, the unaffiliated are expected to continue to increase as a share of the population in much of Europe and North America. As the example of the unaffiliated shows, there will be vivid geographic differences in patterns of religious growth in the coming decades.
One of the main determinants of that future growth is where each group is geographically concentrated today. Religions with many adherents in developing countries — where birth rates are high, and infant mortality rates generally have been falling — are likely to grow quickly.
Much of the worldwide growth of Islam and Christianity, for example, is expected to take place in sub-Saharan Africa. Globally, Muslims have the highest fertility rate, an average of 3.
Worldwide, Jewish fertility 2. All the other groups have fertility levels too low to sustain their populations: Another important determinant of growth is the current age distribution of each religious group — whether its adherents are predominantly young, with their prime childbearing years still ahead, or older and largely past their childbearing years.
All the remaining groups have smaller-than-average youth populations, and many of them have disproportionately large numbers of adherents over the age of In addition to fertility rates and age distributions, religious switching is likely to play a role in the growth of religious groups.
But conversion patterns are complex and varied. In some countries, it is fairly common for adults to leave their childhood religion and switch to another faith. In others, changes in religious identity are rare, legally cumbersome or even illegal. The Pew Research Center projections attempt to incorporate patterns in religious switching in 70 countries where surveys provide information on the number of people who say they no longer belong to the religious group in which they were raised.
In the projection model, all directions of switching are possible, and they may be partially offsetting. In the United States, for example, surveys find that some people who were raised with no religious affiliation have switched to become Christians, while some who grew up as Christians have switched to become unaffiliated.
These types of patterns are projected to continue as future generations come of age. For more details on how and where switching was modeled, see the Methodology.
For alternative growth scenarios involving either switching in additional countries or no switching at all, see Chapter 1. Over the coming decades, Christians are expected to experience the largest net losses from switching.
Globally, about 40 million people are projected to switch into Christianity, while million are projected to leave, with most joining the ranks of the religiously unaffiliated. All told, the unaffiliated are expected to add 97 million people and lose 36 million via switching, for a net gain of 61 million by Modest net gains through switching also are expected for Muslims 3 millionadherents of folk religions 3 million and members of other religions 2 million.
Jews are expected to experience a net loss of aboutpeople due to switching, while Buddhists are expected to lose nearly 3 million.Chapter 3 outlines the research design, the research method, the population under study, the sampling procedure, and the method that was used to collect data.
The reliability and validity of the research. A research population is generally a large collection of individuals or objects that is the main focus of a scientific query.
Research Population A research population is generally a large collection of individuals or objects that is the main focus of a scientific query.
It is for the benefit of the population that researches are done. Gamma g is calculated based on population data from prior research studies, or determined several different ways depending on the nature of the data and the statistical tests to be performed The textbook discusses 4 ways to estimate gamma (population effect size) based upon.
Sample Size Calculator. This Sample Size Calculator is presented as a public service of Creative Research Systems survey plombier-nemours.com can use it to determine how many people you need to interview in order to get results that reflect the target population as precisely as needed.
A majority of U.S. adults – 62% – get news on social media, and 18% do so often, according to a new survey by Pew Research Center, conducted in association with the .