1. Pedro has quiz on statistics so he tried to review his noted but was only able to review descriptive statistics instead of descriptive and inferential statistics which was the coverage of their quiz. Surprisingly, he scored 25 over 30 despite only reviewing one part. What type of error is exhibited by the quiz? If you were to estimate the amount of error in the quiz, what type of reliability can be used? Explain.
2. Pedro got a score of 75 on a test with the M = 80 and SD = 10 with an estimated reliability of 0.96. If you want to 95% sure, what is the interval in which Pedro's true score fall between? If the passing score is 77, do you think it is right to pass Pedro? Why? Why not? No need to show solutions, just answer the questions.
3. Pedro is developing a scale measuring humility. This test he is making is for his research study. To make his items, he interviewed different people from different cultures but are still Filipino. This is because he wanted to prove that Filipinos truly are humble. When he gave his test to his sample, the reliability is low. In this situation, what could be the source of error? Why? What can Pedro do to increase the reliability of his test if he used internal consistency estimates. Explain.