The Yale University PRIME early psychosis / schizophrenia screening test is currently off line. We do, however, have a file-version of the PRIME Early Psychosis / schizophrenia screening test here that you can read and review and it may be helpful to review if you want to understand what some common early signs of schizophrenia are. Review it - and if you want to take the test - write down your answers and then read on.
Most people who show some of these symptoms will not have schizophrenia - but are at increased risk for other disorders like anxiety, depression or bipolar disorder. Whatever the case, its important for any distressing mental health issues, to seek treatment as soon as possible so that it doesn't get worse. More details on the screening test (including details on how to score the test) are available here.
Note that this is just a "screening test" - it checks for early possible symtpoms but doesn't measure whether you actually are geting schizophrenia. If you do have any of the symptoms at a high level it suggests simply that you would benefit from getting a formal evaluation from one of the centers listed here.
If you are concerned that you, or someone you know, may be developing schizophrenia, a good resource to read over is: Schizophrenia Prevention .
We also recommend you consider visiting an early schizophrenia and psychosis diagnosis and treatment center - click here to see the Worldwide list of centers