==== 1968 (aged 22 years) ====
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=== Responding Population ===

All eligible study members were contacted.

|Provided information         |3,885|
|Cumulative total of deaths   |275  |
|Cumulative permanent refusals|45   |
|Temporarily living abroad    |35   |
|Cumulative Emigrated         |373  |
|Failure to contact           |749  |
|                        | | | | | |

=== Data collection ===


A postal questionnaire asking about marriage, fertility, health and employment was sent to all cohort members.

A postal questionnaire was sent to educational administrators in further and technical educational establishments where cohort members were known to be students to ask about courses attended.
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=== Training for data collection ===

Instructions are given at the head of each form.
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=== Contents ===

=== Study Member ===

  * Marital status and children
  * Accidents and medical appointments
  * Housing
  * Employment history and earnings

=== College ===

  * Student course record
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=== Questionnaires ===

{{ questionnaires : 1968-H3.pdf|H3 }} Postal questionnaire\\
{{ questionnaires : 1968-Y8.pdf|Y8 }} Further and Technical Education Survey\\