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GRE Psychology: Measurement And Methodology

Subjects : gre, psychology
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Normal curve - negatively skewed distribution - positively sknewed distribution - bimodal distribution - platykuric distribution






2. Use correlation coefficients in order to predict one variable y from another variable x - let you define a line on graph that describes the relationship between x and y - when the least-square line or regression line is fit to the data - basically: u






3. Mean of Americans is standardized to 100 - with SD 15 or 16 depending on test; correlates most with IQ of biological parents and socioeconomic status






4. Originally to determine mental illness - now for personality; more clinical than CPI; 550 T/F/unsure questions (e.g. 'I would like to ride a horse'); discriminates between disorders; high validity because highly discriminatory items and 3 validity sc






5. Rosenthal effect; researchers see what they want to see; minimized in double-blind






6. Tests the same person at multiple time points and looks at changes within that person






7. Compares 2 groups of people at the same time point






8. For even number of values in the set - take the average of the two middle value






9. Mean (standard error of mean) - median mode; normal and platykuric: equal; positively skewed: mode - med - mean; negatively skewed: mean - med - mode; bimodal: equal mean and med - 2 modes






10. Data that has been counted rather than measured - usually limited to whole or positive values - ex: group size - number of hospital visit - number of symptoms






11. Compares 2 groups of people like an experiment - but this is used when it is not feasible or ethical to use random assignment ex: smoker vs. cancer






12. Assess extent interests and strengths match those found by professionals in a particular job field






13. Sorting cards into a normal distribution; each has a different statement on it about personality; to one end is 'least like self' - other is 'most like self' - and middle is neutral; factor analysis to reduce viewpoints into a few factors






14. Tell you the average extent to which scores were different from the mean - if average standard deviation is large - then scores were highly dispersed






15. Step beyond correlations; allows not only identification of relationship between 2 variables - also make predictions






16. Frequency polygon (continuous variables) - histogram/ bar graph (discrete)






17. Describe what is seen in each of 10 inkblots; scoring is complex; validity questionable






18. For ranks; determining the line that describes a linear relationship






19. Measure the extent to which test measures what it intends to; concurrent - construct - content - face






20. Originally used with free association techniques; word called out - subject says next word in mind






21. Mean is 0 - and SD=1 - This with Z-score allow you to compare one person'S score on two different distributions






22. Whether test really taps abstract concept being measured






23. Allow generalization from sample to population - statistics (sample) - parameters (population): use statistics to estimate parameters






24. How much variation there is among n number of scores in a distribution






25. Measure how well you know a subject - measure past learning






26. The process of representing or analyzing numerical data






27. When subjects act in ways they think experimenter wants or expects






28. Overall range or spread - most basic measure of variability - subtracts the lowest value from the highest value in a data set






29. Like a histogram except that the vertical bars do not touch - various columns are separated by space






30. Capable of showing order and pacing because equal spaces lie between the values - do not include real zero - ex: temperature






31. Fluid intelligence declines with old age while crystallized intelligence does not






32. Comparing an individual'S performance on 2 halves of the same test to reveal internal consistency; internal consistency can be increased by item analysis






33. Revised Binet'S version - used with children - organized by age level - Best known predictor of future academic achievement






34. Intelligence in relation to performance; pioneered development of psychometrics - 'no intelligence is culture-free'






35. Order - variables need to be arranged by order (not necessarily equally spaced) - ex: maranthon finishers






36. Neither the subject nor the experimenter know whether the subject is assigned to the treatment or the control group






37. Notable for cross-cultural application and simple directions - to make the best picture of a man - scored based on detail and accuracy - not artistic talent






38. Anything that is measured such as height or depression score on a depression scale






39. Created multitrait-multimethod technique to determine validity of tests






40. Tests the effects of two independent variables or treatment conditions at once






41. Measured by the same individual taking the same test more than once






42. figure out how much each score differs (deviates) from the mean by subtracting the mean from each score - square each of these deviation values (to get rid of negative value) - add all these squared deviations to get the sum of square - divide sum by






43. Empirical-keying or criterion-keying approach; to determine of subject is like a particular group or not






44. The effect that might result when a group is born and raised in a particular time period






45. The most frequently occurring value






46. Inactive substance or condition disguised as a treatment substance or condition - used to form control group






47. Consist of vertical bars in which the sides of the vertical bars touch - useful for discrete variables that have clear boundaries - interval variables in which there is some order






48. Have order - equal intervals and a real zero ex: age






49. Used when n-cases in a sample are classified into categories or cells - tell us whether the groups are significantly different in size - look at the pattern or distributions - not difference between mean - ex:intro psych class categorized into race -






50. How well a test measures a construct; multitrait-multimethod technique determines validity; internal - external: concurrent - construct - content - face