User contributions for Sga21
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15 April 2014
- 15:0415:04, 15 April 2014 diff hist −98 BUSS249 - Strategic Management No edit summary
29 November 2013
- 21:2421:24, 29 November 2013 diff hist +238 N Least Sqaures Procedure Created page with "{{Learning concept |Description=A technique for fitting a straight line to a scatter gram by minimizing the square of the vertical distances of all the points from the line an..."
- 21:2221:22, 29 November 2013 diff hist +201 N Bivariate Regression Created page with "{{Learning concept |Description=A procedure for deriving a mathematical relationship, in the form of an equation, between a single metric dependent variable and a single metri..." current
- 21:2121:21, 29 November 2013 diff hist +136 N Nonmetric Correlation Created page with "{{Learning concept |Description=A correlation measure for two nonmetric variables that relies on rankings to compute the correlation. }}" current
- 21:2021:20, 29 November 2013 diff hist +180 N Part Correlation Coefficient Created page with "{{Learning concept |Description=A measure of the correlation between Y and X when the linear effects of the other independent variables have been removed from X but not from ..." current
- 21:1921:19, 29 November 2013 diff hist +169 N Partial Correlation Coefficient Created page with "{{Learning concept |Description=A measure of the association between two variables after controlling or adjusting for the effects of one or more additional variables. }}" current
- 21:1721:17, 29 November 2013 diff hist +213 N Covariance Created page with "{{Learning concept |Description=A systematic relationship between two variables in which a change in one implies a corresponding change in the other. |Wikipedia reference=http..."
- 21:1621:16, 29 November 2013 diff hist +116 N Product Moment Correlation Created page with "{{Learning concept |Description=A statistic summarizing the strength of association between two metric variables. }}" current
- 21:1521:15, 29 November 2013 diff hist +223 N Correlation & Regression Created page with "{{Topic |Learning Concepts=Product Moment Correlation, Covariance, Partial Correlation Coefficient, Part Correlation Coefficient , Nonmetric Correlation, Regression Analysis, ..." current
- 20:5820:58, 29 November 2013 diff hist +124 N Analysis of Variance Created page with "{{Topic |Learning Concepts=A statistical technique for examining the differences among means for two or mroe populations. }}"
- 20:5720:57, 29 November 2013 diff hist +201 N Decomposition of the Total Variation Created page with "{{Learning concept |Description=In one way ANOVA, separation of the variation observed in the dependent variable into the variation due to the independent variables plus the v..." current
- 20:5620:56, 29 November 2013 diff hist +67 N SSy Created page with "{{Learning concept |Description=The total variation in Y is SSy. }}" current
- 20:5520:55, 29 November 2013 diff hist +190 N SS Within Created page with "{{Learning concept |Description=Also refereed to as SS error, this is the variation in Y due to the variation within each of the categories of X. This variation is not account..."
- 20:5420:54, 29 November 2013 diff hist +256 N SS Between Created page with "{{Learning concept |Description=Also Denoted as SS x1 this is the variation in Y related to the variation in the means of the categories of X. This represents variation betwee..."
- 20:5220:52, 29 November 2013 diff hist +120 N Mean Square Created page with "{{Learning concept |Description=The mean square is the sum of squares divided by the appropriate degrees of freedom. }}" current
- 20:5020:50, 29 November 2013 diff hist +278 N F Statistic Created page with "{{Learning concept |Description=The null hypothesis that the category means are equal in the population is tested by an F statistic based on the ratio of mean square related t..." current
- 20:4820:48, 29 November 2013 diff hist +197 N Eta2 Created page with "{{Learning concept |Description=The strength of the effects of X (independent variables or factor) on Y (dependent variable) is measured by eta2. The value of Pie squared vari..." current
- 20:4720:47, 29 November 2013 diff hist +140 N Covariate Created page with "{{Learning concept |Description=A metric independent variable used in ANCOVA. |Wikipedia reference=http://en.wikipedia.org/wiki/Covariate }}" current
- 20:4620:46, 29 November 2013 diff hist +291 N Analysis of Covariance Created page with "{{Learning concept |Description=An advanced analysis of variance procedure in which the effects of one or more metric scaled extraneous variables are removed from the depende..."
- 20:4420:44, 29 November 2013 diff hist +99 N N-Way Analysis of Variance Created page with "{{Learning concept |Description=An ANOVA technique model where two or more factors are involved. }}"
- 20:4320:43, 29 November 2013 diff hist +167 N One Way Analysis of Variance Created page with "{{Learning concept |Description=An ANOVA technique in which there is only one factor. |Wikipedia reference=http://en.wikipedia.org/wiki/One-way_analysis_of_variance }}"
- 20:4220:42, 29 November 2013 diff hist +101 N Treatment Created page with "{{Learning concept |Description=In ANOVA, a particular combination of factor levels or categories. }}" current
- 20:4120:41, 29 November 2013 diff hist +118 N Factors Created page with "{{Learning concept |Description=Categorical independent variables must be all categorical (nonmetric) to use ANOVA. }}" current
- 20:3920:39, 29 November 2013 diff hist +261 N Analysis of Variance & Covariance Created page with "{{Topic |Learning Concepts=Analysis of Variance, Factors, Treatment, One way analysis of variance, n-way analysis of variance, Analysis of covariance, Covariate, eta2, F Stati..."
- 20:2820:28, 29 November 2013 diff hist +154 N Paired Samples T Test Created page with "{{Learning concept |Description=In hypothesis testing, the observations are paired so that the two sets of observations relate to the same respondents. }}"
- 20:2720:27, 29 November 2013 diff hist +259 N F Distribution Created page with "{{Learning concept |Description=A frequency distribution that depends upon 2 sets of degrees of freedom- the degrees of freedom in the numerator and the degrees of freedom in ..."
- 20:2520:25, 29 November 2013 diff hist +163 N F statistic Created page with "{{Learning concept |Description=The F statistic is computed as the ratio of two sample variances. |Wikipedia reference=http://en.wikipedia.org/wiki/F-statistics }}" current
- 20:2420:24, 29 November 2013 diff hist +163 N F Test Created page with "{{Learning concept |Description=A statistical test of the equality of the variances of two populations. |Wikipedia reference=http://en.wikipedia.org/wiki/F-test }}" current
- 20:2320:23, 29 November 2013 diff hist +163 N Indpendent Samples Created page with "{{Learning concept |Description=Two samples that are not experimentally related. The measurement of one sample has no effect on the values of the second sample. }}" current
- 20:2120:21, 29 November 2013 diff hist +162 N Z Test Created page with "{{Learning concept |Description=A uni variate hypothesis test using the standard normal distribution. |Wikipedia reference=http://en.wikipedia.org/wiki/Z-test }}"
- 20:2020:20, 29 November 2013 diff hist +278 N T Distribution Created page with "{{Learning concept |Description=A symmetric bell shaped distribution that is useful for small sample (n>30) testing, when the mean is known and the population variance is est..." current
- 20:1820:18, 29 November 2013 diff hist +284 N T Statistic Created page with "{{Learning concept |Description=A statistic that assumes that the variable has a symmetric bell shaped distribution, the mean is known ( or assumed to be known),and the popula..."
- 20:1720:17, 29 November 2013 diff hist +174 N T Test Created page with "{{Learning concept |Description=A uni variate hypothesis test using the t distribution, which is used when the standard deviation is unknown and the sample size is small. }}"
- 20:1520:15, 29 November 2013 diff hist +139 N Nonparametric Tests Created page with "{{Learning concept |Description=Hypothesis testing procedures that assume that the variables are measured on a nominal or ordinal scale. }}" current
- 20:1420:14, 29 November 2013 diff hist +152 N Parametric Tests Created page with "{{Learning concept |Description=Hypothesis testing procedures that assume that the variables of interest are measured on at least an interval scale. }}"
- 20:1320:13, 29 November 2013 diff hist +214 N Gamma Created page with "{{Learning concept |Description=Test statistic that measures the association between two ordinal level variables. It does not make an adjustment for ties. |Wikipedia referenc..." current
- 20:1120:11, 29 November 2013 diff hist +232 N Tau c Created page with "{{Learning concept |Description=Test statistic that measures the association between two ordinal level variables. It makes an adjustment for ties and is most appropriate when..." current
- 20:1020:10, 29 November 2013 diff hist +211 N Tau b Created page with "{{Learning concept |Description=Test statistic that measures the association between two ordinal-level variables. It makes an adjustment for ties and is most appropriate when ..." current
- 20:0820:08, 29 November 2013 diff hist +196 N Symmetric Lambda Created page with "{{Learning concept |Description=The symmetric lambda does not make assumption about which variable is dependent. It measures the overall improvement when prediction is done i..." current
- 20:0620:06, 29 November 2013 diff hist +281 N Asymmetric Lambda Created page with "{{Learning concept |Description=A measure of the percentage improvement in predicting the value of the dependent variable, given the value of the independent variable, given t..." current
- 20:0420:04, 29 November 2013 diff hist +177 N Cramer's V Created page with "{{Learning concept |Description=A measure of the strength of association used in tables larger than 2 x 2. |Wikipedia reference=http://en.wikipedia.org/wiki/Cram%C3%A9r%27s_V }}" current
- 20:0320:03, 29 November 2013 diff hist +99 N Contigency Coefficient Created page with "{{Learning concept |Description=A measure of the strength of association in a table of any size. }}" current
- 20:0220:02, 29 November 2013 diff hist +219 N Phi Coefficient Created page with "{{Learning concept |Description=A measure of the strength of association in the special case of a table with two rows and two columns (a 2 x 2 table). |Wikipedia reference=htt..." current
- 20:0020:00, 29 November 2013 diff hist +297 N Chi Square Distribution Created page with "{{Learning concept |Description=A skewed distribution whose shape depends solely on the number of degrees of freedom. As the number of degrees of freedom increases, the chi- s..." current
- 19:5819:58, 29 November 2013 diff hist +237 N Chi Square Statistic Created page with "{{Learning concept |Description=The statistic used to test the statistical significance of the observed association in a cross tabulation. It assists us in determining whether..." current
- 19:4419:44, 29 November 2013 diff hist +205 N Contigency Table Created page with "{{Learning concept |Description=A cross tabulation table. It contains a cell for every combination of categories of the two variables. |Wikipedia reference=http://en.wikipedia..." current
- 19:4119:41, 29 November 2013 diff hist +321 N Cross Tabulation Created page with "{{Learning concept |Description=A statistical technique that describes two or more variables simultaneously and results in tables that reflect the joint distribution of two or..." current
- 19:3519:35, 29 November 2013 diff hist +268 N P Value Created page with "{{Learning concept |Description=This is the probability of observing a value of the test statistic as extreme as, or more extreme than, the value actually observed, assuming t..." current
- 19:3419:34, 29 November 2013 diff hist +132 N Power of a Test Created page with "{{Learning concept |Description=The probability of rejecting the null hypothesis when it is in fact false and should be rejected. }}" current
- 19:1219:12, 29 November 2013 diff hist +240 N Type 2 Error Created page with "{{Learning concept |Description=Also known as beta error, it occurs when the sample results lead to the non rejection of a null hypothesis that is in fact false. |Wikipedia re..." current