## Solved – ANOVA post-hoc multiple comparisons for unequal variances

I am running one-way ANOVA to determine whether several groups have differing means. I also run post-hoc multiple comparison to determine which means are different. The problem is that I need to have it showed which sets of groups are not different (like REGWQ test does). The problem is that Levene's test shows that the … Read more

## Solved – ANOVA post-hoc multiple comparisons for unequal variances

I am running one-way ANOVA to determine whether several groups have differing means. I also run post-hoc multiple comparison to determine which means are different. The problem is that I need to have it showed which sets of groups are not different (like REGWQ test does). The problem is that Levene's test shows that the … Read more

## Solved – Seasonal data forecasting issues

I have a seasonally decomposed data set. The data set has strong seasonality. Now I am trying to fit the 'seasonal part' of dataset into ARIMA model and tried to forecast (with SPSS). The problem is, I get exactly same values in forecasts as that of actual values. So, MAPE is coming to be 0.000 … Read more

## Solved – How to specify ANCOVA interactions in SPSS

I'm trying to run ANCOVA in SPSS, with a continuous IV as well as a continuous covariate. Variable Information: 1 DV: Continuous 2 IVs: 1 Continuous and 1 Categorical 1 Covariate: Continuous I am most interested on the interaction of the 2 IVs on the DV. My question: Do I need to enter the continuous … Read more

## Solved – How to specify ANCOVA interactions in SPSS

I'm trying to run ANCOVA in SPSS, with a continuous IV as well as a continuous covariate. Variable Information: 1 DV: Continuous 2 IVs: 1 Continuous and 1 Categorical 1 Covariate: Continuous I am most interested on the interaction of the 2 IVs on the DV. My question: Do I need to enter the continuous … Read more

## Solved – how can i calculate the degree of agreement between two methods

I have a sample of 26 learners and I used two different methods to identify their personalities. My problem is I am not that good in statistics and I want variables that I can use within SPSS to calculate the degree of agreement between these two methods (i.e the learner 1 has X as his … Read more

## Solved – how can i calculate the degree of agreement between two methods

I have a sample of 26 learners and I used two different methods to identify their personalities. My problem is I am not that good in statistics and I want variables that I can use within SPSS to calculate the degree of agreement between these two methods (i.e the learner 1 has X as his … Read more

## Solved – Is ETA a good measure for computing the efect size between an ordinal and a nominal variable

I have a nominal and an ordinal variable and I would like to look measure the association that is between the two. For now, I have done Chi-square test and non-parametric Kruskall-Wallis Test and I have come to the conclusion that there is an association/relationship between the two variables. How can I further measure the … Read more

## Solved – Interpreting multivariate tests in repeated measures

I have a within subjects design with 4 DVs and I ran a repeated measures analysis on SPSS. My DV is a physiological measurement and is not expected to be linear. My multivariate Wilks lambda is significant at p = .004 and my Mauchly test approaches significance at p = .054. However, my univariate tests … Read more

## Solved – How to compare two samples of frequencies

I am looking for statistical methods used to compare frequency of observations between two groups. suppose I have two groups of pigeons with the same sample sizes, say 10. The number of  red blood cells of any pigeon are counted. The observations are as follows: Group 1: 66, 58, 64,48,58,65,52,57,54,58 Group 2: 66, 59, 64,58,62,59,57,66,54,58. Can … Read more