1. A researcher conducts an experiment in which she assigns participants to one of two groups and exposes the two groups to different doses of a particular drug. She then gets the participants to learn a list of 20 words and two days later sees how many they can recall. In the experiment the dependent measure is simply the number of words recalled by each participant. What type of dependent measure is this? [TY6.1] Show
Answer: D 2. A researcher conducts a study to find out how many times people had visited a doctor in the previous year. Five people participated in the study and the numbers of visits they had made were 2, 5, 7, 4 and 2. Which of the following statements is true? [TY6.2]
Answer: C 3. Which of the following statements is most likely to be true if the distribution of a variable is severely skewed? [TY6.3]
Answer: D 4. If X is a variable, which of the following is not measured in the same units as X? [TY6.4]
Answer: D 5. If scores on a variable are normally distributed, which of the following statements is false? [TY6.5]
Answer: A 6. Which of the following is not a measure of central tendency? [TY6.6]
Answer: B 7. The shaded bars in the histogram below represent the times (rounded to the nearest 10 milliseconds) that 50 people take to react to a loud noise. Which of the following statements is not true?
Answer: A 8. ‘Root mean squared deviate’ could be used as another name for which measure of dispersion? [TY6.8]
Answer: D 9. A researcher measures a variable whose distribution she observes to be normally distributed. On this basis which of the following statements is most likely to be true?
Answer: C 10. Which of the following is a measure of central tendency?
Answer: E 11. The SPSS output below is from a study in which the scores for the variable “Survey_Point” could vary between 0 and 30. Looking at the distribution of frequencies, which of the following statements is true?
Answer: B 12. The SPSS output below is from a study in which the scores for the variable “Survey_Point” could vary between 0 and 30. Looking at the distribution of frequencies, which of the following statements is true?
Answer: B
13. “A variable that can be treated as if there were no breaks or steps between its different levels (e.g., reaction time in milliseconds).” What type of variable is this a glossary definition of?
Answer: D 14. “A measure reflecting distinct categories that have different names but the categories are not numerically related to one another.” What type of measure is this a glossary definition of?
Answer: B 15. “The spread of scores across levels of a variable.” What is this a glossary definition of?
Answer: A 16. “Scores that are very different from the typical value for a distribution. Because they are very different from the central tendency of a distribution they contribute a great deal to the amount of dispersion in the distribution.” What does this glossary entry define?
Answer: C Which of the following is true about measure of central tendency?Mean, Mode, Median are the measures of central tendency. Thus the correct option is C.
Which of the following statements is true about mode?Answer: Answer: Mode is the number which occurs the most in a given data, hence, it is always one of the numbers in a data.
What is mode in measure of central tendency?Frequently asked questions about central tendency
The mode is the most frequent value. The median is the middle number in an ordered data set. The mean is the sum of all values divided by the total number of values.
Which of the following statements is true usually mean is the best measure of central tendency?Mean is generally considered the best measure of central tendency and the most frequently used one. However, there are some situations where the other measures of central tendency are preferred. There are few extreme scores in the distribution.
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