Define reliability and validity; explain concurrent and predictive validity.

Define reliability and validity; explain concurrent and predictive validity.

• Define reliability and validity; explain concurrent and predictive validity.
• Explain the difference between Type I and Type II errors.
• What’s the main difference between non-parametric and parametric measures?
• The minimum level of significance for scientific research is a p (probability) value of .05 or less. What does this mean? Give an example

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