User contributions
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- 17:15, 28 August 2019 (diff | hist) . . (+473) . . N Spearman rho (Created page with "Spearman's Rho measures the strength and the direction of the relationship between two variables. Unlike Pearson r which requires data from both variables be interval and no...") (current)
- 17:14, 28 August 2019 (diff | hist) . . (+495) . . N Rules of thumb for interpreting the size of a correlation coefficient (Created page with "{| class="wikitable" |- ! Size of positive correlation ! Size of negative correlation ! Interpretation |- | .90 to 1.00 | -.90 to -1.00 | Very high positive (negative) correl...")
- 17:13, 28 August 2019 (diff | hist) . . (+518) . . N Pearson r (Created page with "Also known as Pearson's product-moment correlation. This technique is used to correlate the raw scores of two variables. Also visit http://psych.csufresno.edu/psy144/Content...")
- 17:12, 28 August 2019 (diff | hist) . . (+307) . . N Refs (Created page with "== References == Chatterji, M. (2003). Designing and using tools for educational assessment. Retrieved September 21, 2008 from http://www.columbia.edu/~mb1434/EdAssess.htm...") (current)
- 17:12, 28 August 2019 (diff | hist) . . (+2,113) . . N Standard Error of Measurement (Created page with "== Definition == ''from: Chatterji, 2003 refs'' A statistical estimate of the amount of random error in the assessment of results or scores. ''contributed by Frank LaB...") (current)
- 17:11, 28 August 2019 (diff | hist) . . (+3) . . Normal Curve Equivalent scores (current)
- 17:11, 28 August 2019 (diff | hist) . . (+1,565) . . N Normal Curve Equivalent scores (Created page with "== Rationale for NCE scores == Because percentile ranks are considered ordinal level data, there are limits to the mathematical manipulations and statiscal '''analyses''' that...")
- 17:10, 28 August 2019 (diff | hist) . . (+215) . . N Percentile Rank (Created page with "== Conversions == To determine percentile rank from a raw score, transform the score into a z score, and determine the proportion of the area below the curve for that z score...") (current)
- 17:09, 28 August 2019 (diff | hist) . . (+1,533) . . N Z-scores (Created page with "'''A Brief Explanation of Z-Scores:''' A z-score is a standard score that is used by researchers to add focus and clarity to data. Z-scores indicate how many standard deviati...")
- 17:08, 28 August 2019 (diff | hist) . . (+3,415) . . N Standard deviation (Created page with "== Why bother finding standard deviation? == Standard deviation can be tedious to calculate by hand, but the value found can provide some very good insight into a set of dat...")
- 17:08, 28 August 2019 (diff | hist) . . (-28) . . The Box Plot
- 17:07, 28 August 2019 (diff | hist) . . (+26) . . The Box Plot
- 17:06, 28 August 2019 (diff | hist) . . (+2,338) . . N The Box Plot (Created page with "Creating a box and whisker plot using SPSS (Refer to emailed file for screen-shots and further assistance) 1) Open SPSS and EXCEL 2) Copy the data (into SPSS) that you woul...")
- 17:05, 28 August 2019 (diff | hist) . . (+1,035) . . N Interquartile ranges (Created page with "The Interquartile range represent the middle 50% of the data represented within a particular box and whisker plot. When looking at data from a box and whisker plot it is pert...") (current)
- 06:08, 26 August 2019 (diff | hist) . . (0) . . N File:PSE.png (current)
- 04:40, 26 August 2019 (diff | hist) . . (+42) . . Main Page
- 04:38, 26 August 2019 (diff | hist) . . (+6) . . Contributions here
- 04:37, 26 August 2019 (diff | hist) . . (-967) . . Contributions here
- 07:18, 25 August 2019 (diff | hist) . . (+2,698) . . N Central Tendency (Created page with "''Having finally mastered the skills necessary to report my data, and thanks to the help from fellow students in my doctoral program, I was ready to write up a description of...")
- 07:17, 25 August 2019 (diff | hist) . . (0) . . N File:Skewness.png (current)
- 07:16, 25 August 2019 (diff | hist) . . (+1,141) . . N Shapes of distribution (Created page with "Distribution of data can take a wide variety of shapes, and ultimately depends on how data points are distributed along the measurement scale. A general "feel" for the data c...")
- 07:15, 25 August 2019 (diff | hist) . . (-2) . . Histograms
- 07:14, 25 August 2019 (diff | hist) . . (+495) . . N Histograms (Created page with "To create a histogram on SPSS, do the following: 1) After entering data into SPSS, click on "Graphs", scroll down to “Legacy Dialogs", move cursor to the right...")
- 07:13, 25 August 2019 (diff | hist) . . (0) . . N File:Stnad crvs.jpg (current)
- 07:13, 25 August 2019 (diff | hist) . . (0) . . N File:Statistics.JPG (current)
- 07:12, 25 August 2019 (diff | hist) . . (0) . . N File:SD.jpg (current)
- 07:12, 25 August 2019 (diff | hist) . . (0) . . N File:Samplesize.jpg (current)
- 07:12, 25 August 2019 (diff | hist) . . (0) . . N File:Middle 50.png (current)
- 07:11, 25 August 2019 (diff | hist) . . (0) . . N File:Interquartile range.gif (current)
- 07:11, 25 August 2019 (diff | hist) . . (0) . . N File:Int-splts.png (current)
- 07:10, 25 August 2019 (diff | hist) . . (0) . . N File:Histogram 1.png (current)
- 07:10, 25 August 2019 (diff | hist) . . (0) . . N File:Chosingstat.gif (current)
- 07:10, 25 August 2019 (diff | hist) . . (0) . . N File:Chi3.jpg (current)
- 07:10, 25 August 2019 (diff | hist) . . (0) . . N File:Chi2.jpg (current)
- 07:10, 25 August 2019 (diff | hist) . . (0) . . N File:Chi1.jpg (current)
- 07:09, 25 August 2019 (diff | hist) . . (0) . . N File:Box-plot-explained.gif (current)
- 07:09, 25 August 2019 (diff | hist) . . (+9,019) . . N Visualizing Data (Created page with "Introduction == Stem-and-leaf displays == A stem and leaf plot is a representation of data in which each data value is separated into two parts -- a stem and a leaf. For exa...")
- 07:08, 25 August 2019 (diff | hist) . . (0) . . Types of Data
- 07:07, 25 August 2019 (diff | hist) . . (+8,010) . . N Types of Data (Created page with "''(based on Hinkle, Wiersma, & Jurs, 2003 refs)'' Collected data are the results of the measurement of factors. For example a student's knowledge of biology might be mea...")
- 06:59, 25 August 2019 (diff | hist) . . (0) . . N File:Alpha2.jpg (current)
- 06:56, 25 August 2019 (diff | hist) . . (0) . . N File:Greek.jpg (current)
