With help from the Student IT Survey and mail server logs (big thank you to the mail admins!) I have some stats:
Number of unique users sending email via Bristol mail servers over a 30 day period, expressed as a percentage of the staff and student populations:
| Device | Staff | Student |
|---|---|---|
| iPhone | 1.6% | 1.1% |
| iPod Touch | 0.2% | 0.3% |
| Total | 1.8% | 1.3% |
Respondents to the Student IT Survey March 2009, expressed as a percentage of the 1439 respondents:
| Device | Student |
|---|---|
| iPhone | 2.6% |
| iPod Touch | 4.5% |
| Total | 7.1% |
What does this tell us, and how do we account for the discrepancy between the figures?
The much lower numbers for email use than ownership suggest that many owners aren't using them for their University email account (but might be using them for personal accounts?)
Ownership of the iPod Touch is high, but email usage is low - perhaps with the lack an always-on data connection this is unsuprising (waiting until you are at the nearest wireless hotspot can be frustrating)
Could selection bias (which students chose to respond to the survey) distort the figures? I have no particular evidence for this, but it is always a suspicion. We true to reduce selection bias by offering an attractive prize draw to respondents - but in this case the top prize is an iPod Touch!
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