View Full Version : Statistics


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  1. Nonparametric version of MANOVA in SPSS
  2. help with pre/post likert analysis
  3. Bonferroni: guidance on using z or t values?
  4. Random Errors and non-normal distributions
  5. Homogoneity of variance for related t test
  6. Testing ANOVA assumptions in Split Plot
  7. Fisher's Exact Test?
  8. To add a covariate or not to add a covariate
  9. Sample size calculation
  10. Please explain differences between R and r
  11. robustness check
  12. P value query and SPSS problem
  13. Help me understand what an 'index' means please!?
  14. Independent repeats
  15. Test for linear trend
  16. Tests for Yes/No
  17. Sum of squares error
  18. Effect size for Log-Rank
  19. In knots over zero-inflated data! To ZINB or not to ZINB?
  20. Anderson-Darling Normality Test
  21. Please help: Reversing items for Factor analysis: when??
  22. Inter-rater reliability
  23. Canocical correlation
  24. Understanding cause of cluster growth across multiple waves of a survey
  25. Logistic Regression basic Ques
  26. Basic stats question for rm anova
  27. Effect Size for mixed model (SPSS)
  28. Prediction and Multicollinearity
  29. Dependent Data?
  30. Limits of Multinomial Logistic Regression
  31. Monte Carlo simulation using bootstrapped parameters
  32. Confidence Intervals
  33. Comparison of means across groups
  34. Simple Linear Regression with GUM Uncertainties
  35. Mixed Modleing Growth Rates - cumulative or period?
  36. Ordinal Logistic Regression and Bimodality
  37. Difference between controlling for and grouping
  38. split plot or paired design?
  39. dummie mulitpe values / time periods
  40. Calculating Omega Squared
  41. Please assist me in Anova
  42. How to compute significance here? (And why?)
  43. Is my logic sound?! Help me :(
  44. Which test to use?
  45. Help needed soon
  46. Correlation coefficient of variables when added together
  47. Percent of control in repeat measures ANOVA?
  48. Compare means vs. norm means???
  49. OC Curve Statistics Help
  50. Leading Lagging Analysis between 2 time data series?
  51. Sample Size - Multiple comparisions
  52. Residual Sum of Squares
  53. measure correlation
  54. Unemployment Analysis
  55. Kolmogorov smirnov test for goodness of fit
  56. odds ratio in Fisher's exact test?
  57. looking for the right statistical analysis method...
  58. probability question
  59. Sample size calculation for study with 3 groups
  60. Pairwise t test on weather data
  61. Permutations & Probability
  62. Nonparametric multivariate survey analysis - suggestions please!
  63. Integration by parts
  64. t-test results and ANOVA post tests confusion
  65. Looking for the right way to manipulate data before analysis
  66. ANOVA vs Regression?
  67. geometric mean
  68. relationship between test conditions and time to failure using linear regression
  69. Help me please ... How to calculate the next element
  70. Good stat website
  71. anova, Tukey post test, t test
  72. conditional probability
  73. Mode and the continuous uniform distribution
  74. sampling a population
  75. ANOVA table confusion - how is error estimate so large?
  76. Standard deviation puzzle
  77. cumulative logit model
  78. Help! Correlation between Categorical Data & Interval data
  79. Reporting data in case of single measurement
  80. 3-way interaction: calculation of the SEb
  81. Non-parametric; comparing multiple samples
  82. Cell count too low for chi-square, too high for Fisher?
  83. normality tests
  84. Sampling (test between 2 sample variance)
  85. PDF distribution function and median
  86. Sigma Notation Evaluation
  87. Logistic regression model
  88. Birthday problem
  89. Sample Size
  90. Using a Fisher's exact text on repeated measures
  91. Why is PCA data normalized but DFA data isn't?
  92. Dependent / conditional regression?
  93. SE for difference between two Cohen's d
  94. Two-way ANOVA and Tukey's HSD test
  95. Chi squared problem - finding the obs. value of chi squared?
  96. Significance tests for binary logistic regressions
  97. Name of this simple rotation/sampling technique?
  98. Expected values with Chi squared?
  99. Simple Question
  100. Regression with a trend-stationary variable...
  101. Building a QQ plot manually in excel
  102. Pearson's product moment correlation
  103. Grouping Variable - Where and How... Please Help!!!
  104. Spearman question
  105. Help needed for treatement of my research model
  106. Negative Lower Limits
  107. Interpreting Logistic Regression Results
  108. Purpose of descriptive Stats
  109. Cochran-type test for balanced incomplete block design with binary response data?
  110. Back transformation from Log transformation
  111. Statistic Sought
  112. Split plot analysis?
  113. Hypothesis testing on proportion
  114. Correlation help
  115. Problem with small amount of cases
  116. Normality test-split plot CRD
  117. ANOVA post-hoc analysis in R
  118. Database comparison reveals unmatched data
  119. Using Regression When Y = # Wins
  120. Sample size for Cronbach's Alpha
  121. Non Existent Data
  122. Why CONTINUOUS Quantitative Dependent Variable in Regression?
  123. Noobie Looking for Advice
  124. Basic Stats questions...sorry!
  125. confusion by effect of adding a confounding variable to model
  126. Anova help
  127. Confused by Stats method for Charity project
  128. Which ANOVA of Ecological work
  129. Email campaign analysis - basic stats
  130. Sample error management
  131. Extreme right skewed data and repeated measures
  132. Repeated Measures Analysis Question
  133. What test is suitable for multiple groups?
  134. Need help determining what aspect is driving the overall satisfaction
  135. Statistics Hypothesis
  136. What is the derivative of (5x-2)^(1/x)?
  137. How to predict future scores based on past scores.
  138. Non-parametric Error Propagation
  139. complete statistic
  140. Test for two groups in one sample
  141. 5 factor, 3 level experimental design
  142. Help needed.
  143. Help with GARCH test
  144. Wilcoxon Matched Pairs Question
  145. Stepwise logistic regression (backwards LR)
  146. Help Needed with HLM and Power
  147. Practical definition of standard deviation
  148. Type 1 error and type 2 error
  149. Logistic regression: Goodness-of-Fit problems
  150. ANOVA Sample sizes
  151. Independence of two proportions
  152. Significance testing on repeat distributions
  153. symbol
  154. Help
  155. ANOVA question
  156. Help with Time series (Calendar Anomalies)
  157. Anova table
  158. interpreting ACF and PACF
  159. bootstrapping
  160. Logistic regression: poorly distributed observations. What are the problems?
  161. GLM with binomial errors: underestimating interactions?
  162. logistic regression?
  163. I need to understand regression analysis. Please Help
  164. Curve Fitting / Regression
  165. Toxicology/Genetics Question - ideas please?
  166. Shaprio-Wilk test problem
  167. Moderation graphs
  168. Test if Point (X,Y) lies on the curve f(x).
  169. Variation on T-test equation
  170. [ is it correct ? ] Yes or No
  171. Comparing correlations
  172. help with interpretation of multiple regression results
  173. urgent help required... please....
  174. changing two-tailed to one-tailed results...
  175. 2 short questions
  176. mahalanobis distance critical values > 10 df
  177. Intervals
  178. Help with SPSS output interpretation: UNIANOVA
  179. help with correlations between variables
  180. Z-scores for two likert scales?
  181. z-scores
  182. Order statistics?
  183. Help with survey Statistics
  184. sampling distribution t
  185. Comparing Mean Differences Across Time and Another Variable Simultaneously
  186. Elementary statistics
  187. heteroskedasticity/weighted regression
  188. intepreting (square root) transformed variables
  189. Help: contingent ranking, sample size and random
  190. Beta random variable to Normal random variable
  191. Probability question ..pls helpppp
  192. What would be better than sorting by "Average Star Rating" ?
  193. Expectation of reciprocal of a Normal Distribution
  194. Average from uneven ranges
  195. Expected mean help
  196. What method should I use? Regression
  197. Statistical Testing for Prototype Designs
  198. confidence interval
  199. Need help!
  200. Stat101 expected value
  201. Stat101 y-intercept of regression line
  202. Process capability without variability in data?
  203. Discriminant Function Analysis Prior Probabilities
  204. sigma level
  205. Demographic Data Comparison
  206. Stat101 Standard Deviation of sample mean
  207. Stat101 95% Confidence Interval
  208. what type of anova should i use please?
  209. STAT101 Scatterplot quiz. Just need verification
  210. Sig in Logistis Regression
  211. test on sunday - help
  212. Paired and unpaired participants
  213. Just Two Samples
  214. Confidence Level of a Sorting Method?
  215. predicting X using multiple regression?
  216. Regarding Binomial in non-parametric testing
  217. Can I use mediation with my data?
  218. Multiple T Tests type 1 error
  219. Chi Square Help!
  220. One-Way ANOVA and Independent-Samples t-tests
  221. Estimating a trend line
  222. Standard Deviation or Average Rate of Return
  223. Log transformation
  224. is there a method for this?
  225. categorial variable for a binary outcome
  226. mean time for an random event to occur?
  227. Not a t-test but a....
  228. Checking for serial correlation in a binary series
  229. Trend lines and median values
  230. Was this data manipulated?
  231. Error estimates with r2 in linear regression
  232. Population Estimates of Market Segments
  233. correlation easy one (I think)
  234. Paremetric vs non-parametric inferences
  235. within subjects correlation
  236. Multiple equations, one set of data
  237. density function
  238. moderator? mediator? confounder?
  239. New to stats. Need help.
  240. Stats and Design Help - Have I got this completely wrong?
  241. probability problem, randem sample...
  242. Convert z-score to t-score?
  243. How do I do this calculation
  244. Calculating sensitivity SS and specificity SP from the SS&SP of subitems
  245. Always able to assume normality if sample size >= 31
  246. mathematical statistics
  247. Assumption when using the mean and median
  248. KW for 3 groups vs group pairs z-Test
  249. [need help] Transformation for skewed distribution
  250. ANOVA 2x6 Question