Analyzing Data

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How to conduct statistical tests...
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*[[How do I choose the appropriate statistical test for my data?]]
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*[[How do I create dummy variables?]]
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*[[How do I control for familywise error?]]
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*[[Meta-analysis|How do I conduct a meta-analysis?]]
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*[[Other questions about meta-analyses?]]
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*[[Mediation|How do I conduct meditational analysis?]]
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'''How to test interactions?'''
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*[[What is an Interaction?]]
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*[[Interaction between two continuous variables]]
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*[[Interaction between categorical and continuous variables]]
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'''How to transform continuous into categorical variables'''
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*[[Why transform continuous variables into categorical variables?]]
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*[[How to dichotomize variables?]]
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*[[Why cut into thirds or fourths instead of dichotomizing?]]
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'''How to create composites'''
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*[[How do I create a composite of items?]]
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*[[Why create a composite of items?]]
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*[[How do I know when it is appropriate to create a composite?]]
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*[[How do I create a composite with items with different scale ranges?]]
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*[[How do I create a composite with items labeled in opposite directions?]]
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'''How to detect and deal with outliers'''
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* [[What are outliers?]]
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* [[Should I check for outliers?]]
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* [[How can I tell if outliers are influencing my data?]]
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* [[Detecting Outliers - Univariate | How do I detect univariate outliers in my data?]]
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* [[Detecting Outliers - Multivariate | How do I detect bivariate and multivariate outliers in my data?]]
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* [[Dealing with Outliers | How do I deal with outliers?]]
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<span style="font-size:95%; font-weight: bold;">►</span> '''General''' 
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* [[General tips]]  
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Other types of practical questions...
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* [[Marginal significance]]  
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*[[When to use a one-tailed versus two-tailed test?]]
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* [[Tips/tricks for using SPSS]]  
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*[[When to use univariate versus multivariate statistics?]]
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* [[Descriptive Statistics | What are "Descriptive Statistics"?]]  
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*[[If my correlational data is not linear, what do I do?]]
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* [[Inferential Statistics | What are "Inferential Statistics"?]]  
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*[[General tips|What are some overall tips/tricks when analyzing data?]]
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*[[What is considered marginally significant?]]
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*[[What is the difference between descriptive and inferential statistics?]]
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*[[What is the difference between a type I and type II error?]]
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*[[How is a correlation different than a partial correlation?]]
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*[[What are the criticisms of hypothesis testing?]]
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*[[What is the purpose of graphing a scatterplot?]]
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*[[Computational Modeling|Why would you want to use a computational model?]]
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*[[What is a scatterplot?|What is the purpose of graphing a scatterplot?]]
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*[[What is linearity?|Why is linearity important?]]
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*[[Want help using SPSS?]]
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*[[What is "syntax" in SPSS?|Why use syntax in SPSS?]]
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<span style="font-size:95%; font-weight: bold;">►</span> '''Data Screening'''  
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'''Data Screening'''  
* [[Purpose of Data Screening | What is the purpose of data screening/cleaning?]]  
* [[Purpose of Data Screening | What is the purpose of data screening/cleaning?]]  
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* [[Data cleaning | Tips/tricks for Data cleaning]]  
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* [[Data cleaning | What are the best tips/tricks for data cleaning?]]  
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* [[Checking Data Entry]]
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* [[Checking Data Entry|How to check for data entry errors?]]
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'''Missing Values'''  
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<span style="font-size:95%; font-weight: bold;">►</span> '''Missing Values''' <br>
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* [[Missing Values | Why do missing values occur?]]
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- [[Missing Values | Why do missing values occur?]] <br>
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* [[Problem of Missing Data | Why is missing data a problem?]]
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- [[Problem of Missing Data | Why is missing data a problem?]] <br>
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* [[Identifying Missing Data | How do I identify if missing values are random or non-random?]]  
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- [[Identifying Missing Data | How do I identify if missing values are random or non-random?]] <br>
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* [[Dealing with Missing Data | How do I deal with missing data?]]  
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- [[Dealing with Missing Data | How do I deal with missing data?]] <br>
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'''Normality'''   
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* [[What is "normality"?]] <br>
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<span style="font-size:95%; font-weight: bold;">►</span> '''Outliers'''  <br>
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* [[Why is normality important?]] <br>
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- [[What are outliers?]] <br>
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* [[How do I determine whether my data are normal?]] <br>
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- [[Should I check for outliers?]] <br>
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* [[How do I deal with non-normality?]] <br>
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- [[How can I tell if outliers are influencing my data?]] <br>
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* [[How do I transform variables?]] <br>
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- [[Detecting Outliers - Univariate | How do I detect univariate outliers in my data?]] <br>
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- [[Detecting Outliers - Multivariate | How do I detect bivariate and multivariate outliers in my data?]] <br>
+
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- [[Dealing with Outliers | How do I deal with outliers?]] <br>
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<span style="font-size:95%; font-weight: bold;">►</span> '''Normality'''  <br>
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- [[What is "normality"?]] <br>
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- [[Why is normality important?]] <br>
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- [[How do I determine whether my data are normal?]] <br>
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- [[How do I deal with non-normality?]] <br>
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- [[How do I transform variables?]] <br>
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*[[What is absolute change?]]
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*[[What is absolute difference?]]
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*[[What is the 68-95-99.7 rule?]]
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*[[What is absolute error?]]
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*[[What is boredom effect?]]
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*[[What is adjusted R^2?]]
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*[[What is bias?]]
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*[[What are the types of bias?]]
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*[[What is bimodal?]]
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*[[What is grand mean?]]
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*[[What is main effect?]]
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*[[What are floor effects?]]
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*[[What is the median?]]
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*[[Wnat is a normal distribution?]]
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*[[What is goodness-of-it?]]
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*[[What is a Type I error?]]
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*[[What is a Type II error?]]
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*[[What is the difference between a type I and type II error?]]
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*[[What is boxplot?]]
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*[[What is bivariate correlation?]]
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*[[What is test-retest reliability?]]
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*[[What is effect size?]]
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*[[What is power?]]
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*[[What is the latent variable?]]
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*[[What are ceiling effects?]]
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*[[What is the difference between floor effects and ceiling effects?]]
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*[[What is a positive linear relationship?]]
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*[[What is parsimony?]]
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*[[What is sampling error?]]
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*[[What is factorial ANOVA?]]
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*[[What is sampling bias?]]
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*[[What is a one-tailed test?]]
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*[[What is observer drift?]]
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*[[What is a one-tailed test?]]
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*[[What is the coefficient of determination?]]
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*[[What is correlation?]]
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*[[What is negative correlation?]]
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*'''Statistical Tests'''
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- [[Meta-analysis]] <br>
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- [[Mediation]] <br>
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- [[What is an Interaction?]] <br>
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- [[Interaction between two continuous variables]] <br>
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- [[Interaction between categorical and continuous variables]] <br>
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- [[What is a correlation?]] <br>
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- [[What is a partial correlation?]] <br>
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- [[What is a point-biserial correlation?]] <br>
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- [[What is regression?]] <br>
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- [[What is a probabilistic causal analysis?]] <br>
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- [[What is analysis of covariance (ANCOVA)?]] <br>
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*[[What is analysis of variance (ANOVA)?]]
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*[[What is a one-way ANOVA?]]
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*[[What is the difference between one-way analysis of variance and two-way analysis of variance?]]
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*'''Other'''
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- [[What is a scatterplot?]] <br>
+
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- [[What is linearity?]] <br>
+
-
- [[Want help using SPSS?]] <br>
+
-
- [[What is "syntax" in SPSS?]] <br>
+
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- [[Computational Modeling|What is Computational Modeling?]] <br>
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- [[Rank-based nonparametric tests|What is a rank-based nonparametric test?]]
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*[[What is alpha?]]
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*[[What is a manipulation check?]]
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*'''Transforming continuous into categorical variables'''
+
-
- [[Why transform continuous variables into categorical variables?]] <br>
+
-
- [[How to dichotomize variables?]] <br>
+
-
- [[Why cut into thirds or fourths instead of dichotomizing?]] <br>
+
-
 
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*'''Composites'''
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-
- [[How do I create a composite of items?]]  <br>
+
-
- [[Why create a composite of items?]]  <br>
+
-
- [[How do I know when it is appropriate to create a composite?]] <br>
+
-
- [[How do I create a composite with items with different scale ranges?]] <br>
+
-
- [[How do I create a composite with items labeled in opposite directions?]] <br>
+
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Latest revision as of 02:50, 22 November 2016

Statistically analyzing and interpreting your collected data
Analyzingdata1.png

How to conduct statistical tests...

How to test interactions?

How to transform continuous into categorical variables

How to create composites

How to detect and deal with outliers

Other types of practical questions...

Data Screening

Missing Values

Normality

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