Research Methods and Experimental Design: Exam Questions and Answers, Exams of Parallel Computing and Programming

Download Research Methods and Experimental Design: Exam Questions and Answers and more Exams Parallel Computing and Programming in PDF only on Docsity! CPCE- Research and Program Evaluation Test Exam Questions and Answers. 1. Occam's razor suggests that experimenters - Correct answer interpret the results in the simplest manner 2. Experiments should always abide by the code of ethics. The variable you manipulate/control in an experiment is the - Correct answer independent variable 3. Hypothesis testing is associate to the work of? - Correct answer R.A. Fisher 4. From a purely statistics standpoint, in order to compare a control group to the experimental group, the researcher will need a _______ - Correct answer a test of significance 5. In the social sciences the accepted probability level is usually - Correct answer .05 or less 6. P =.05 really means - Correct answer there is only a 5 percent chance that the difference between the control group and experimental groups is due to chance factors 7. A type 1 error occurs when - Correct answer the null hypothesis is rejected even though it is true, the researcher claims some different or relationship exists when one does not 8. A type 2 error occurs - Correct answer is also called a beta error and you accept the null when it is false 9. Assume the experiment in question 708 is conducted. The results indicate that the biofeedback helped raise written board exam scores but in reality this is not the case. The researcher has made a - Correct answer type 1 error 10. A counselor educator decides to increase the sample size in her experiment. This will - Correct answer reduce to type 1 and type 2 errors 11. If a researcher changes the significance level from .05 to .001, then - Correct answer alpha errors decrease, however, beta errors increase 12. The researchers in question 727 now attempts a more complex experiment. One group receives no assertiveness training, a second group receives four assertiveness training sessions, and a third receives six sessions. The statistic of choice would be - Correct answer ANOVA 13. To complete a t test you would consult a tabled value of t. In order to see if significant differences exist in an ANOVA you would - Correct answer a table for F values P a g e 1 | 5 14. Which level of significance would best rule out chance factors? - Correct answer .001 15. When a researcher uses correlation, then there is no direct manipulation of the IV. A researcher might ask how IQ correlates with the incidence of panic disorder. Again, nothing is being manipulated, just measure. In cases such as this a correlational coefficient will reveal. - Correct answer the relationship between IQ and panic disorder. 16. Which of the following would most likely yield a perfect correlational of 1.00? - Correct answer length in inches and length in centimeters 17. A good guess would be that if you would correlate the length of CACREP graduates' baby toes with their NCE scores the result would - Correct answer close to 0.00 18. In a basic curve or so-called frequency polygon the point of maximum concentration is the - Correct answer mode 19. In a new experiment, a counselor educator wants to ferret out the effects of more than one IV. She will use a ___________ design. - Correct answer factorial 20. Regardless of the shape, the _____ will always be the high point when a distribution is displayed graphically - Correct answer mode 21. A group of first-semester graduate students in counseling took an experimental counseling exam that was much more difficult than the NCE. All of the students scored very low. A distribution of their scores would: - Correct answer be negatively skewed 22. Nice of the world's finest counselor educators are given an elementary exam on counseling theory. Needless to say, all of them scored extremely high. The distribution scores most likely be - Correct answer negatively skewed 23. Billy received an 82 on his college math final. This is Billy's raw score on the test. A raw score simply refers to the number of items correctly answered. A raw score is expressed in the units by which it was originally obtained. The raw score is not altered mathematically. Billy's raw score indicates that - Correct answer more information is obviously necessary. 24. When a horizontal line is drawn under a frequency distribution it is known as - Correct answer the x axis 25. What is the abscissa called? - Correct answer the x axis 26. What is the y axis also called? - Correct answer ordinate P a g e 2 | 5