# psych research

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The flashcards below were created by user Anonymous on FreezingBlue Flashcards.

1. Table
a display of data in a matrix format
2. graph
a representation of data by spatial relationships in a diagram
3. frequency distribution
a graph that shows the number of scores that fall into specific bins,or divisions of the variable
4. histogram
a frequency distribution in which the frequencies are represented by contiguous bars
5. frequency polygon
a frequency distribution in which the frequencies are connected by straight lines
6. normal curve
a bell shaped cure described by a certain mathemeatical function
7. skewed
a distribution that is not symmetrical
8. cumulative frequency distribution
a frequency distribution that shows the number of scores that fall at or below a certain score
9. scattergram
a graph showing the responses of a number of individuals on two variables; visual display of correlational data
10. median split
a division of the subjects in a study into two groups of equal size on the basis of one of the variables
11. line graph
a graphical representation using lines to show relationships between quantitative variables
12. bar graph
graphical representation of categorical data in which the heights of separated bars, or columns, show the relationships between variables
13. time-series graph
a graph in which the abscissa (x-axis) represents time
14. error bars
in a graph, vertical lines that indicate plus or minus one standard deviation of the data or, less frequently, the standard error of the mean
15. box-and-whisker plot
a typeof graph based on median and percentiles rather than mean and standard deviation
16. data reduction
the process of transcribing data from individual data sheets to a summary form
17. coding guide
a record that specifies the variables of a study, the columns they occupy in the data file, and their possible values
18. invalid data
data points that fall outside the defined range for that variable of data
19. missing data
empty cells in a data matrix
20. outliers
dat points that are highly improbable, although not impossible
21. missing data code
a symbol, such as an asterisk, that is entered ina cell that has no data
22. validity
an indication of accuracy in terms of the extent to which a research conclusion corresponds with reality
23. internal validity
extent to which a study probides evidence of a cause-effect relationship between the independent and dependent variables

### Card Set Information

 Author: Anonymous ID: 66757 Filename: psych research Updated: 2011-02-16 18:02:07 Tags: test Folders: Description: vocab for test 2 Show Answers:

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