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The study was a questionnaire survey and intelligence test of 26 subjects (15 men, 11 women; aged between 18-60, mean age 34) drawn from two specific Mormon churches in the North East of England.
Permission to conduct research was obtained from the Bishop, and questionnaires were handed-out to the congregation during a Sunday morning visit - the response rate was about 12% of the two churches memberships.
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Mean completed family size (aged over 40): 3.5 (SD 0.8)
[UK National mean completed family size: 1.9]
Mean intended family size (all subjects): 3.7 (SD 1)
Mode intended family size (all subjects): 4
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Average age of marriage Mormon men in this sample: 24 years old (SD 2.4) [National average 32]
Average age of marriage Mormon Women in this sample: 22 years old (SD 2) [National Average 30]
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WORDSUM brief intelligence test (ten multiple choice word definitions)
88% of subjects scored 7 or more, mean score was 8, 27 percent scored 9 or 10. The results indicate that this sample was considerably above average intelligence.
There was no significant trend towards a correlation between WORDSUM/ IQ-rank score and intended fertility (most national samples indicate a negative correlation between IQ and fertility)
Social class: 92 % of the sample were in the top two social classes - professional and managerial.
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Factors influencing family size decisions - clear cut responses
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In influencing the size of your family, how important is your belief that family relationships continue after death? 77% regarded this as important (58% 'Very important'; 19% 'Important').
In influencing the size of your family, how important is your desire to follow church teachings regarding the plan of salvation and the purpose of the family? 77% regarded this as important (35% Very Important, 42% Important).
In influencing the size of your family, how important are answers to prayers and fasting, or other personal revelations? 88% regarded this as important (53% very Important, 35% Important).
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