Project Cymru

What is randomisation, and why is it important?

About the trial

What is randomisation, and why is it important?

Once a family had agreed to take part in the trial a member of our research team visited them at home to collect some information about them. At this point they were randomised into one of two groups. One group were offered places on the SFP. The other group did not attend the SFP.

As family dynamics and the behaviour of young people can change a lot in a short space of time, it is difficult to say which of these changes have been due to attending the programme and which are due to other background factors such as increasing maturity or changes at home or at school. By comparing the changes experienced in those families who receive the programme to similar families who did not receive the programme, researchers will be able to see what, if any, additional benefit attending the programme has.

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