1. C

    Significant Friedman's test but non-significant post-hoc tests

    Hello, I am running a Friedman's test because I want to see if there is any difference in my participants' scores across 4 time-points. My sample is n=51. I ran the test and it revealed a statistically significant difference (p = 0.29). Then I conducted post hoc tests to see where the...
  2. Z

    Which Tests to Run

    I have a questionnaire with different data nature, each few questions can be grouped into 1 variable (ex: Age, Gender, Region, Income Level into "Background"; Experienced Side Effects (multiple answers), Hospitalization (yes/no) into "Risks"...). I transformed the groups by means but would like...
  3. A

    Calculating SEM in test-retest study (ICC)

    Hi! I am involved in the writing of a thesis, where two raters are running a test-retest study to test the intra- and inter-rater reliability of a clinical test. Here the Standard Error of Measurement (SEM) needs to be reported, and the following formula should be used: SEM=SD x √(1-ICC). I...
  4. P

    Regression Analysis for Survey Data on SPSS (For a beginner)

    Hello Everyone, I am very new to SPSS so forgive me if my questions seem overly simple. I am conducting a survey based research project. My dependent variable contains 2 response options: Likely or Not Likely (0 or 1) The independent Variables I am interested in are: Age Category (20-29...
  5. D

    Help with data analysis plan for dissertation

    Any help would be much appreciated :) For my research project I'm hoping to do a moderation analysis and will be looking at if Variable M moderates the relationship between Variable X and Variable Y. All variables are continuous (scale) and were measured at only 1 time point. My 3 hypotheses...
  6. T

    How do I combine variables in SPSS to create a new variable?

    I want to create 6 groups in SPSS, originating from 2 groups but I don't know how to do this. I have one variable A which is binary (0.1-1 millimetre or >1 millimetre) and another variable B which has 3 possible values (3 treatment strategies for cancer: wait-and-see, polypectomy or surgery). I...
  7. J

    Dataprocessing: how to insert an empty row if measurement of that time-slot is missing

    My data consist of many parameters, measured in a frequency of 1 second. At random moments a second is "skipped" from the data (see picture, 21:24:29 is skipped for instance). I would like to create an empty row where a second is skipped in my data, so that I can impute the datafile afterwards...
  8. A

    Could someone explain "sphericity in ANOVA" for me, please?

    Hi! Could someone explain "sphericity in ANOVA" for me, please? I am a complete dummy, so I need a "for dummies-explanation". I would be very grateful for the help. All the best!
  9. L

    is expected count for independent variable matters ?

    I trying to run a multinomial logistic regression but i want to know does the expected count of each independent variable should be less than 5 before i run the test?
  10. L

    blank in goodness of fit test in multinomial logistic regression

    I run a multinomial logistic regression with dependent variable BECK DEPRESSION INVENTORY LEVEL ( Six categories) and independent variable gender But i got nothing inside the sig column under goodness of fit test I then tried to run the test with BDI LEVEL with gender and year of study (four...
  11. L

    multinomial logistic regression

    I tried to run a multinomial logistic regression with dependent variable (depression level - 6 level in total) and independent variable ( categorical, ordinal , ratio) total independent variables i had is 13. i try to run the test but the result seem quite unpleasant plus the SPSS told me...
  12. L

    Factors or covariates in multinomial logistic regression

    I have ordinal variables where I ask the respondent to rate how frequent they go for a motivational talk ( 1: never, 2: rarely, 3: sometime , 4: often, 5: always ) and also their satisfaction towards their life ( 1: unsatisfied ............ 9:very satisfied) . So, as i know this kind of...
  13. L

    how to determine ?

    My dependent variable is depression level. Can i know how to determine the amount of female and male that belong to a certain category of depression?
  14. P

    How duplicate each row as many times as is given in a variable (SPSS V23)?

    Hello. I'm only start to use SPSS V23. Help me, please. How I can do it?
  15. L

    Can I test linearity and homoscedasticity between a ordinal and scale / continuous data?

    I want to use a scatter plot to test the linearity and homoscedasticity of my data set. My dependent variable is depression score which is continous and scale data. Can I test the linearity between depression score and categorical variable such as gender (1=female, 2=male)?
  16. L

    Interpreting boxplot in spss

    I got this result for my boxplot to access normality in SPSS. Is it correct that I interpret the result for the normality as not normal and the box plot is left or positively skewed ? Should I state out the value for the quantiles too (Q1, Q2 , Q3 )
  17. E

    How to create 1 (continuous) variable by using two (continuous) variables (and ignore the missing) in SPSS?

    Hi there, I am currently busy with my master thesis and I have the following question. I want to create a variable called applicant credential (appl_credent), by combining the following two variables: western applicant credential and nonwestern applicant credential. a participant either has a...
  18. Y

    Not sure what test to use- HELP

    The following question is being asked for an university assignment: ''Conduct a test to determine if on average there are more pieces produced on a day when products of type A are produced than on a day when product type D is produced. Write down the value of the test statistic and the...
  19. V

    Loops in SPSS - creating new variable based on multiple loops??

    Hi, I am looking for help! Maybe someone here knows the answer? I want to make a new variable (in SPSS) Date_flare_FU (Date of a disease flare during follow up). This variable will be based on 12 follow up visits (Date_T1 tm Date_T12 -> date), during which disease activity is assessed...
  20. L

    Normality is not assumed ( kolmogorov-smirnov sig level= 0.000)

    Currently, I'm doing a research using Beck Depression Inventory on 340 respondents from my university. Before I apply any parametric tests, I tested the normality first, however the normality is not assumed. So, I wondering is the data really not normal or the way I analyze it have problem ...