==== 1972 (aged 26 years) ====
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=== Responding Population ===

All eligible study members were contacted.

|Provided information         |3,750|                        | | | | | |
|Cumulative total of deaths   |290  |                        | | | | | |
|Cumulative permanent refusals|146  |                        | | | | | |
|Temporarily living abroad    |69   |                        | | | | | |
|Cumulative emigrated         |447  |                        | | | | | |
|Failure to contact           |660  |                        | | | | | |
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=== Data collection ===

Data collection was contracted to Social and Community Planning Research whose interviewers requested home visits with all cohort members resident in England, Scotland and Wales. Questionnaires were used to ask about the family in this household and the wider family, and cohort members’ own health, training, employment and skills, earnings, social participation, and social imagery questionnaires. Cohort members were also asked to complete a verbal ability test and the short **Maudsley Personality Inventory**. Short versions of the questionnaires were sent to those reluctant or unwilling to give enough time for the whole set of questionnaires.
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=== Training for data collection ===

The study team carried out training sessions lasting three days with all interviewers.The interviewers’ {{ questionnaires : 1972_nursesmanual.pdf|instruction manual}} is available to view. 
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=== Contents ===

=== All Study Members ===

  * Marital status and children
  * Household and housing information
  * Heights and weights
  * General health
  * Nervous strain and nervous trouble
  * Religion
  * Siblings
  * Employment training
  * Employment history and earnings (detailed)
  * Parental information
  * Occupational information of parents, father-in-law and spouse
  * Attitudes to social class
  * Social and political activities
  * Social attitudes
  * Electoral behaviour
  * Maudsley Personality Inventory (short form) 
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=== Questionnaires ===

  * Main questionnaire : {{ questionnaires : 1972_sectionA.pdf|Section A }}
  * Main questionnaire : {{ questionnaires : 1972_sectionB.pdf|Section B }}
  * Main questionnaire : {{ questionnaires : 1972_SectionC.pdf|Section C }}
  * Main questionnaire : {{ questionnaires : 1972_sectionD.pdf|Section D }}
  * Main questionnaire : {{ questionnaires : 1972_sectionE.pdf|Section E }}
  * {{ questionnaires : 1972_H5a.pdf|Form H5a }} - Accident records
  * {{ questionnaires : 1972_H5aE.pdf|Form H5aE }}  - Education update
  * {{ questionnaires : 1972_T.pdf|Form T1 }} - Maudsley and cognitive test
  * {{ questionnaires : 1972_Z_hospital and education.pdf|Form Z1 }} - short form questionnaire

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