categories

  1. A

    How to decide on a cut-off score (groups) if the scale doesn't have one?

    For my study, I'm using a scale (rating scale from 1-7) that doesn't have a predetermined cut-off score. However, in order to do the stats, I need to make 2 groups/categories with "high score" and "low score". How do I determine the point at which a participant is considered high vs. low...
  2. G

    help needed please - creating sub categories within a category

    Hi All, I'm new at SPSS. Currently I'm doing a homework and I have a large set of data. Two of the categories I have is ethnic groups and nationality for a demographic study. I ran a descriptive (frequency) stats of ethnic backgrounds to see how many ethnic backgrounds there are among the...
  3. C

    Analysis of Multiple Sites (vegetation) with multiple categories/ranks - HELP!

    I need some advice (and note, I am NOT a stats pro, excel yes, but have only used SPSS and R once) Short story is, I have done a vegetation survey on a gecko tree shelter sites. There are 20 shelter tree sites in each grid. Each shelter tree is I.D. as A(transect line) 0(distance x15m). So A0...
  4. A

    Showing all categories in table even if no observations in some

    Dear all, I have been having this problem for a while and tried a number of options after googling intensively without any success so I am hoping someone will be able to help! I am outputting proportion tables using the proportion command and I would like all the categories to appear in...
  5. R

    Frequency of category membership: help!

    Hello A group of people have completed a 'sentence sorting' task. They were given 100 different sentences, each containing the word 'over' and were asked to sort them into groups according to what they thought 'over' meant in all the sentences (working on the assumption that 'over' has more...
  6. A

    Logistic Regression and Multiple Regression

    Hi, Please could you help me (or direct me to someone who can help me) with the following: I have a spreadsheet with a number of environmental independent variables (e.g. slope, radiation, etc.) with dependent variables (presence absence and densities of two plant species Ls and Ee). MY...