Sped 411 Midterm Study Guide Graded A+

What is the main difference between testing and assessment? {Ans: ...}The fortieth percentile is the point in a distribution A. at which a student has answered 40% of the questions correctly. B. above which are 40% of the cases. C. below which are 60% of the cases. D. below which are 40% of the cases. {Ans: D}The standard deviation of scores for a sample of children is 16, and the arithmetic mean is 100. The distribution of scores is a normal distribution. This means that approximately 34% of the cases will have scores between a. 92 and 108 b. 84 and 90 c. 84 and 100 d. 100 and 132 {Ans: C}Given the scores 12, 5, 15, 9, 15, and 4 the mean is {Ans: 10}Reliability must be present if a test is to be considered.. A. consistent. B. valid. C. onerous. {Ans: B}What is validity? {Ans: It shows the extent to which a test measures what it is intended to measure /what it is supposed to measure}