Flashcards
AGEE 644 Class 3
Cards in this deck (28)
- 1____ indicates the relationship between paired scores, indicates whether the relationship is positive or negative and the strength.Correlations
- 2This stat indicates both the direction and the magnitude of the relationship b/t two variables with out needing a scatter plot.Pearson R
- 3The sum of the z scores squared in a distribution will always equal____The number in that distribution
- 4The mean of the squared deviations is always_____1
- 5Pearson R equals the sum of the z score products divided by .....N=number of paired scores
- 6With a Pearson's R coefficient the stronger the relationship the closer R will be nearer to....1
- 7With a Pearson's R coefficient if there is no overall relationship b/t the paired z scores the R will be...0
- 8A scatter plot with dots going from lower left to upper right indicates....A positive correlation
- 9Pearson R is a statistic that can be used with ______ and ______ data that is normally distributed.Interval and Ratio
- 10The Pearson r indicates relationship. The sign of the coefficient indicates the _______ of the relationship, and the difference between the coefficient and 0 indicates the _____ of the relationship.Direction, Degree
- 11The researcher chooses the appropriate statistical procedure primarily on the basis of....1) The scale of measurement of the measures
2) The number of variables - 12When you square the Pearson r the resulting index is....The coefficient of determination (r2)
- 13The Pearson r and r2 are only appropriate where the relationship b/t x and y is ___linear (scatter plot)
- 14_________ , an ordinal coefficient of correlation, is used when the data are rankings.Spearman rho (p)
- 15True or False Spearman rho is interpreted the same as Pearson's rTrue
- 16The ___ is used when both variables are genuine dichotomies scored 1 or 0 and indicates both direction and strength of relationship.Phi Coefficient
- 17A _______ coefficient uses nominal variables in a 2x2 contingency table.Phi
- 18A Phi coefficient of 0 indicates _____ b/t variables.Independence (no association)
- 19____ _____ uses nominal variables , lies b/t 0-1, uses an rxc contingency table.Cramer's V
- 20___________ uses ordinal variables, is appropriate for square contingency tables, value is between -1 and 1.Kendall's tau b
- 21___________ uses ordinal variables, is appropriate for rectangular contingency tables, value is between -1 and 1.Kendall's tau c
- 22__________ uses ordinal variables, variables are ranked, is a descriptive index of agreement between ranks, measure of associationSpearman Rank Order
- 23________ is used when nominal and ordinal are presentRank-biseral correlation coefficient
- 24With the Pearson Product Moment Correlation coefficient, r designates coefficient from ________, and R designates coefficient for __________Sample, Population
- 25What should you do if you have ordinal and interval data?Convert the interval scores to ranks (ordinal data), and calculate using Spearman or Kendall statistics
- 26__________ is used if there is nominal and interval dataPoint biserial correlation coefficient
- 27When describing measures of association using Davis, a coefficient of .70 or higher has a _____________very strong association
- 28When describing measures of association using Cohen, an r coefficient of .50 or larger has a ____________large effect size
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- AGEE 644 Flashcards on AGEE 644 Class 3, created by Renee Conneway on 05/03/2018.
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- Renee Conneway
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