spss

  1. A

    Analysis of covariance (ANCOVA) and risk estimates on continuous variable

    Dear All I have done Analysis of covariance (ANCOVA) on a RCT data. The outcomes are continuous (quality of life and coherence). I used the ANCOVA to estimate the between-group differences adjusted for pre-test values; age, gender, and education. I presented then f values and p values. However...
  2. K

    Need help with 2 SPSS Questions

    I've got these SPSS results refering to a study where horses and camels were injected with tripelenamine. I have 2 questions: 1) How do I calculate the 95% confidence/trust interval for comparing the variability of the percentage of drugs in horses and camels' blood? 2) For a level of...
  3. U

    How to analyse sig. interaction in 3x2 ANOVA

    Hi, i've discovered a significant interaction in my 3x2 ANOVA in my psychology dissertation (3x2 Between Subjects Design, using SPSS). I was wondering which post-hoc analysis i should use to study this interaction. My tutor has provided us with example instructions, which involve splitting the...
  4. K

    What do I do after a Principle Component Analysis

    So, I work mainly with biological data, and in this case I have data from environmental measurements such as canopy cover, ground cover, species diversity, etc. I measured this data on 4 sites that were grazed by cattle, then the same measurements were taken after the cattle were removed on the...
  5. B

    SPSS Basic Histogram - how to manipulate given data

    Hi I have never used SPSS before and have had a look around the web before posting this. I have a set of data that contains three variables: 1. The name of a road 2. The length of the road; and 3. The suburb the road ends in. I need to create a histogram to compare the distribution...
  6. N

    2x2x2 ANCOVA

    Hi all I'm not entirely sure this would be the correct place to ask, but Im in the process of analyzing data for my thesis and realized that I need to conduct an ANCOVA on my data. While I've taken a number of statistics courses, I have never come across ANCOVAs and I wanting to get some...
  7. I

    appropriate tests for randomly selected data in spss?

    Hi. I am having troubles with what test should I use in comparing randomly selected data using spss? Cr concentrations----------------Cr concentration absorption 15.00 mg/kg-------------------------------3.54 45.00 mg/kg-------------------------------4.27 75.00...
  8. estatistics

    Statistical help for students!

    i am a Statistician / psychologist who can help you with your statistics and statistical design in spss, amos, statistica, Econometrics, minitab, stata, r, gpower (in psychometrics, psychology, sociology, marketing, statistics, or psychometrics) as well with the whole project (master, bachelor...
  9. A

    Intraclass Correlation - Missing Values - SPSS

    Hello, I am attempting to run a mixed ICC (3,k)/(3,1) with multiple raters from surveys. I am assessing the reliability of 6 raters, 12 subjects, and 27 items. I want to assess reliability for each survey item...
  10. T

    Chi Square, ANOVA, & T-test for interpretation of SPSS output

    Hello all: I am in a university class studying statistics and I have an assignment where I need to interpret results from SPSS. In order to do that I need to understand Chi-square, ANOVA, & difference of means. I have studied the textbook, reviewed the class notes, & watched countless youtube...
  11. C

    Help with SPSS stats...completely stumped

    ...as are all my friends. Basically I've been sitting here for the last 3 hours trying to figure out this. It's question 22. The questions ImageShack® - Online Photo and Video Hosting A view of the data if it helps Imageshack - datae.jpg I know I have to compare both years (2006 and...
  12. P

    Help needed with using SPSS - multiple regression

    Hi guys, I'm wanting to do an analysis in SPSS - I'm not entirely sure what the analysis is called though. I have data and want to see if a variable (with a value of either 0 or 1) affects the observation. So far I've come up with Y(hat)i = b0 + b2X2 i where Y = starting salary b0 = average...
  13. B

    Help with an SPSS problem...

    I'm given this data: 40 people in a study... Therapy 1 Therapy 2 Suceed 6 11 Did not suceed 33 29 I have to find if one therapy is significantly different than...
  14. B

    SPSS - Friedman Test & Ranking Options

    I'm trying to perform a Friedman test for 3 conditions (nonparametric data). My results have 16 variables with 16 points to score (all of which must be used). Respondents can score 16 points against a single variable or 1 point against all 16 variables. The 3 conditions are past, present and...
  15. I

    SPSS and Regression

    Anyone good with SPSS and regression models? x= income per week y= food expenditure Household X a 100 b 150 c 200 d 250 e 300 f 350 g 400 h 450 Obtain OLS...
  16. P

    aggregate a variable with SPSS

    Long post so be warned ;) I'm working on a "lab assignment" using SPSS 15.0. My data set is different variables for the 50 states plus D.C. and I just followed step-by-step how to create categorical variables from a continuous variable (the variable "income" , I went to Transform-Compute...
  17. 0

    Spss

    Has anybody ever used this statistical software? I am using SPSS for a research and am in need of some help... Thank you