Flashcards
Best test - Which statistical test to use when?
Cards in this deck (14)
- 1A linear relationshipwhen two variables vary proportionally
- 2non-linear relationshipwhen the variables do not vary proportionally
- 3Correlationis a way to indicate the relationship between two variables
- 4Pearson’s correlationcoefficient (or Pearson’s Product-Moment Correlation) will express the linear relationship between two variables
Parametric test
Partial Correlation is used when controlling for a third variable - 5Spearman Rhois mostly used for linear relationships when dealing with variables at ordinal level
Non parametric test - 6Chi squaredasssociation
- 7Linear regressionPredictions
It is a powerful technique used for predicting the unknown value of a variable from the known value of another variable
The model has one dependent variable and one independent variable
Y = b0 + b1 X + e - 8Linear regression - formulaY = b0 + b1 X + e
- 9Multiple regression - predictionsIt is a powerful technique used for predicting the unknown value of a variable from the known value of two or more variables
It helps us to predict the value of Y for given values of X1, X2, X3, etc..
The model has one dependent variable and two or more independent variables - 10Multiple regression - predictionsY = b0 + b1X1 + b2X2 + …. + e
- 11ComparisonsAn ANOVA (or Analysis of Variance) is used when we want to look at differences between the means of groups (i.e., mean difference)
t-tests and nonparametric equivalents were covered in U24111 - 12How to calculate P values for ANOVA?The F-distribution can be used to calculate p-values for the ANOVA
- 13Comparisons - types of ANOVAOne-way ANOVA is a statistical technique used to test three or more means
One-way ANOVA compares three or more levels of one factor
Two-way ANOVA is a design with two factors
…. And more … - 14Look at week 10 for best test questionsokay?
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- U24137: Advanced Statistics and Experimental Method for Psychology Flashcards on Best test - Which statistical test to use when?, created by Jasmine Stow on 27/11/2018.
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- Jasmine Stow
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