help needed

  1. T

    I am a newbie when it comes to SPSS, does anyone know which test I need to use for my analysis, and how to do this?

    Hi, I'm new on this forum and new to statistics and SPSS as well (it is not my strong suit, unfortunately, but I have to do this for a project). I am trying to investigate the relationship between the frequency of cannabis usage and the respective alcohol, tobacco and illicit drug use in...
  2. L

    help me witch R and median

    I am currently working on the data from my research. Before I can run the analysis I need to find the median for a specific variable per participant. My data set consists of all the trials per participant and per trial there is data of that specific variable. How can I calculate the median for...
  3. F

    Help with Fisher's Exact Test

    We're working a paper and the editor is asking me to use FET to calculate if the difference in capture between High Traps and Low Traps is statistically significant. We have two years of data. In our first attempt we have the data as Species 1: 1 specimen in HT and 10 specimens in LT. Jamovi is...
  4. S

    Help required with statistics course

    Hi, I need to complete a statistics course to complete my degree but I am struggling with it quite a bit. I have attempted some of the questions on my current assignment but overall I'm not sure how to go about it at all. I was wondering would anyone be able to help me to understand how to do...
  5. M

    Need help to figure out a study design

    Hello everyone! I'm currently writing a systematic review and I just can't figure out the study design of one of the included studies. The study is from Davis et al. (2002) with the title "Swallowing with a tracheostomy tube in place: does cuff inflation matter?". The aim of the study was to...
  6. S

    Binomial/Poisson (or any ) Distribution for finding out probability of me getting into a business school,plz help with my calculation.

    Probability of getting into a business school is 10%,I have applied to 12 business schools,what is probability that i get accepted by atleast 1 of them? My solution as per Binomial Distribution:- Probability of success(p)=1/10...
  7. T

    Data help!

    I am struggling to work out how I should analyse my data. My current thinking is that a chi squared test of independence will work, however only if the data I have can be set out in the correct format. I am testing 2 IV's that are varied within each trial randomly, where each trial has a cue IV...
  8. S

    Dissertation Analysis Confusion

    Hello all and thanks for any future responses. I am doing a study looking at whether three independent categorical/dichotomous variables (gender, Greek status, and class status (i.e. freshman vs senior)) influence a person's disordered eating behaviors and attitudes among college students...
  9. W

    Comparing habitat use across seasons - what test can I run

    Hi, I've got some data on deer habitat use across 4 seasons and 6 different habitat types. I would like to test whether habitat use differs between the seasons but I can't work out what stats test would be suitable. Is anyone able to help me out? Also - I am unsure whether to use the raw...
  10. T

    I need help with my regression analysis for research capstone.

    Hi all, I'm new to regressions and also new to posting here. My topic is: How have E-books Affected College Textbook Prices? My hypothesis is: H0: The CPI for college textbooks will fall with the introduction of the e-book because increased innovation and competition causes an...
  11. L

    Finding my control group PSM, Matching or regression model and correct for confounder

    Hey there, First off I'm hoping I'm posting this in the right place. I'm doing research where there is a patient group of n=9 that underwent our new treatment. Whilst there is a group of n=140 that underwent the regular treatment. Now my prof. wants me to find the 18 most matching...
  12. W

    Multinomial logistic regression

    Hi, I'm quite new to R and I need a little advise on whether multinomial logistic regression is right for what I'm hoping to do for my data. Basically, I've been given some camera trap data to work with. The data is non-normal and consists of 25 species documented over 30 different trap...
  13. C

    Psychology Dissertation help

    Hello, I am so stuck and do not know where to turn. I have raw data for The Domain Specific Hope Scale survey and have a sample size of 11 participants. the survey has 6 domain areas, with each containing 8 or 9 questions in each. I need to present the data, using SPSS software, in a way...
  14. G

    Cave Temperature Analysis, Real life management issues.

    Hi, I've taken math course's up to Calc III and Diff Eq, but never a statistics course. So I was hoping this forum could help me. I am working with 10+years of temperature data taken from several loggers throughout a cave system. The loggers record temperature every 30mins, which I have...
  15. C

    Which test should I use?

    Hello, I'm writing my thesis and I'm clueless about which statistic test I need to apply ( is it T-test, Chi-text, Anova …), I will do my ststistics on SPSS. In my thesis I have 2 sets (=2 groups) of patients with the same disease, one group gets a specific treatment , while the second group...
  16. S

    Statpedia: Looking for feedback & help

    Hello, My team and I recently created an open project for people to create charts in a super easy way. I thought I would share it with this group for suggestions or how people like it. The project is statpedia.com, the new version was just released. We really want to create something...
  17. B

    Statistical Analysis for Heart Monitors

    Hi everyone, I am an English person who's never taken statistics (yikes, right?). Well, now I'm working a job where I need some ideas of what kinds of statistical analysis might be used to make sure that medical devices (heart monitors in this case) are working properly. I'm writing a...
  18. K

    Probability of a Poisson Distribution without t given problem

    This is on my final exam study guide for statistics. I have absolutely no idea how to do it Problem 1: Valerie Variance is taking her "no-time limit " final exam. As always, the exam has an infinite number of questions and the instructor gives no partial credit. Valerie being a diligent...
  19. N

    How to differentiate between a global and a local method?

    Hello, I am trying to write a report based on prediction models and my topic requires me to cover one global method(regression for example) and a local method( nearest neighbour for example). I do not quite understand the term global and local in this context. Some help to explain these terms...
  20. M

    Need help merging two files with multi-level data

    Need Help Merging Two Files Into One Hi all, I am wondering what is the best way to approach to combine two data sets into one (if possible) OR how to run an analysis using the two. Here is my situation: 1st Data Set: has 400,000+ cases of projects. There are around 30 variables...