What type of standard score has M = 0 and SD = 1? Group of answer choices X score Z score IQ score T score Flag question: Question 2 Question 24 pts Which of the following is a characteristic of the normal curve? Group of answer choices Mean, median, and mode are the same. Mean and mode are the same, but the median is different Mean and median are the same, but the mode is different. Mean, median, and mode are different. Flag question: Question 3 Question 34 pts A score that is three standard deviations above the mean would have a z-score of ______. Group of answer choices 0 -3 3 1 Flag question: Question 4 Question 44 pts What does generalizability mean? Group of answer choices The sample does not represent the population. Sampling error is high. Results apply only to the sample studied. Results may be applied to the population studied. Flag question: Question 5 Question 54 pts Under the normal curve, approximately what percentage of scores falls between -1 and +1 standard deviations around the mean? Group of answer choices 95% 14% 68% 34%