Reliable, not valid Valid, not reliable Reliable and valid Demonstrating that the instrument is valid and reliable is one of the most important parts of any research study. Variables Two major types of variables: Continuous Variables numeric (test score, weight, etc.) – Discrete Variables categorical (gender, ethnicity, affiliation, etc.) –
Reliable, not valid Valid, not reliable Reliable and valid Demonstrating that the instrument is valid and reliable is one of the most important parts of any research study. Variables Two major types of variables: Continuous Variables – numeric (test score, weight, etc.) Discrete Variables – categorical (gender, ethnicity, affiliation, etc.)
Guide%20Book_EDUC%20919_revised_2-22-15.docx