Results 1 to 3 of 3

Thread: which statistical test to use? please help!

  1. #1 which statistical test to use? please help! 
    New Member
    Join Date
    Sep 2012

    I really need some help on which kind of statistical test i am supposed to use for my study.
    I am trying to predict species richness/abundance of beetles based on some tree's characteristics such as sun exposure, shape of tree hole, diameter and height, canopy cover etc.
    Some of the predictor variables (tree's characteristics) are continuous (e.g. height, diameter) and some are categorical (e.g. shape of tree hole). The dependent variable (species richness/abundance) are both categorical (at least so i assume: species richness is an index, and abundance is a quantitative variable, but it's discrete because it only includes natural numbers).
    So, if my assumptions are right, what kind of statistical test should i use? I think I can't use linear regression. How about AIC?
    Considering that I have never done a statistical analysis I am looking for the easiest test to perfom.

    I hope someone can solve my doubts!
    Thank you in advance!

    Reply With Quote  


  3. #2  
    Forum Professor wallaby's Avatar
    Join Date
    Jul 2005
    Try switching your categorical dependent variable with a continuous variable. Then you can examine the statistical significance of species richness on this continuous variable (tree height for example) using ANOVA. If determining the statistical significance of one factor at a time is sufficient for your purposes that is. This might be do-able with a general linear model also, but i don't even want to think about that right now.

    Reply With Quote  

  4. #3  
    Join Date
    Oct 2012
    I believe there are many useful sites which can help you with your problem. I have recently come across a site Online Math Tutor which has proved to be a very useful site. It provides online help in topics like algebra, trigonometry, statistics. You might get to learn and decide about the statistical test once you get in touch with this site.
    Reply With Quote  

Similar Threads

  1. Replies: 8
    Last Post: February 21st, 2012, 11:03 AM
  2. Statistical software
    By Zwirko in forum General Discussion
    Replies: 1
    Last Post: December 9th, 2009, 05:45 PM
  3. Why is the Turing Test considered a good test of AI?
    By angrysoba in forum Computer Science
    Replies: 1
    Last Post: October 17th, 2006, 11:38 AM
  4. Help with a statistical problem
    By jsgoddess in forum Mathematics
    Replies: 3
    Last Post: August 1st, 2006, 09:21 PM
Tags for this Thread

View Tag Cloud

Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts