9) The researchers also asked participant's happiness a second time, two days after the money was spent. They found that happiness levels were not very consistent. What issue does this raise about the happiness measure? (By the way, this didn't happen in the real study} a. Reliability b. Validity c. Confound 10) The researchers were quite puzzled about the lack of consistency in happiness. Not being sure what to make of it, they decided simply to omit the second measure from their report. What principle of Open Science does this violate? (By the way, this didn't really happen either.} a. Seek replication b. Do we have the full story? C. Use meta-analysis d. share your materials