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Post-16 Transitions: a Longitudinal Study of Young People with ...

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Selection <strong>of</strong> schools for top-up sample<br />

The overall aim was to draw a sample <strong>of</strong> 345 schools, on the basis<br />

that 115 would agree to participate in the research (based on a 30<br />

per cent response rate). The population was defined as all<br />

mainstream secondary schools in England, excluding those that<br />

participated in Wave 1 and middle deemed-secondary schools. As<br />

special schools were over-represented in Wave 1, they were<br />

excluded from the top-up sample although young people from<br />

special schools remain over-represented in the sample. This was<br />

important to ensure sufficient special school students in the<br />

sample to enable comparisons <strong>with</strong> mainstream school students to<br />

be made.)<br />

MORI’s approach to the selection <strong>of</strong> schools for the top-up sample<br />

comprised the following procedures:<br />

• The sampling frame was stratified by Government Office<br />

Region (GOR) in England.<br />

• Within each GOR, schools were selected <strong>with</strong> a probability<br />

proportionate to the size <strong>of</strong> school register (ie pupil<br />

population).<br />

• The selected sample <strong>of</strong> schools were compared against<br />

population pr<strong>of</strong>iles to ensure that it was representative.<br />

Table A.1 gives pr<strong>of</strong>ile information for participating schools as<br />

well as population pr<strong>of</strong>iles.<br />

Selection <strong>of</strong> pupils<br />

The nominated SENCO/teacher was then contacted by a MORI<br />

interviewer to arrange a time to visit the school. During this visit,<br />

the interviewer assisted the SENCO/teacher <strong>with</strong> completing the<br />

Pupil Information Form (PIF) and the administration <strong>of</strong> the optout.<br />

1<br />

The PIF was divided into two parts: the first part collected a<br />

limited number <strong>of</strong> variables about each eligible pupil (eg gender,<br />

SEN stage in Year 11/2000-01); and the second part collected their<br />

contact details. The first part was completed for a maximum <strong>of</strong> 30<br />

eligible pupils 2 and the second part was completed only for those<br />

pupils that did not opt-out <strong>of</strong> the study.<br />

1 This is to minimise the burden on schools but schools, if they chose<br />

to, could carry out this process themselves.<br />

2 In the pilot, MORI tested two approaches: a census and a maximum<br />

<strong>of</strong> 40 eligible pupils. The findings from the pilot showed that the<br />

maximum number <strong>of</strong> eligible pupils tended to be 30. Thus the<br />

decision was taken in the main stage to cap the maximum number <strong>of</strong><br />

148<br />

<strong>Post</strong>-<strong>16</strong> <strong>Transitions</strong> <strong>of</strong> <strong>Young</strong> <strong>People</strong> <strong>with</strong> SEN: Wave 2

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