At trial, the expert's direct testimony is divided into five main parts:

• Qualifications as an expert to render opinion testimony.
• The expert's assignment and how it was performed.
• Findings of fact based on research and testing.
• The expert's opinions.
• Reasons that support the conclusions.

Expert opinions may be based on facts found, testing or research conducted, or a series of hypothetical questions developed with the expert by the sponsoring attorney and based on facts, evidence and proof developed at trial.

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