Non-response and information bias in population-based psychiatric research:the Northern Finland 1966 Birth Cohort study
Abstract Study samples in medical research are selected according to the objectives of the studies. Researchers seek to collect data as extensively and reliably as possible. In practice, however, data are often missing or may be incorrect. This thesis covers some of the problems concerning missi...
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| Format: | Doctoral Thesis |
| Language: | English |
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University of Oulu
2010
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| Online Access: | http://urn.fi/urn:isbn:9789514261572 http://nbn-resolving.de/urn:isbn:9789514261572 |