Reliability and Validity

I give out a survey that asks which you value more – a)Work/life balance, b) Recognition for your work or c) A pay raise. What is the variable is this?

• Nominal

• Ordinal

• Interval

• Ratio

Is there a difference in life expectancy (DV) between people with different hair colors (IV)? The IV here is which type of variable?

• Nominal

• Ordinal

• Interval

• Ratio

I am working with a group of participants in my walking for fitness research group. I am taking a number of measurements including weight and hamstring flexibility to analyze my intervention. What type of variables are these?

• Nominal

• Ordinal

• Interval

• Ratio

I make 2 parallel forms of Exam 2 for each OTD 6212 section. The content of the exams both measure knowledge of research methods, but Section A does significantly better than Section B. The tests are….    

• Reliable, but not valid

• Valid but no reliable

• Both Valid and Reliable

• Not valid or reliable

I am more comfortable with the concepts of reliabilty and validity

• Yes

• No