+ Reply to Thread
Results 1 to 2 of 2

Thread: Categorical or Continuous ?

  1. #1
    Points: 12, Level: 1
    Level completed: 23%, Points required for next Level: 38

    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Categorical or Continuous ?




    Hello everyone,

    I have done an experiment in Ergonomics and now I'm dealing with the analysis. It's about a manual lifting task and heart rate recovery time. I have one main response which is heart rate recovery in minutes (obviously continuous), and three Indep variables: weight of the object(10 kg, 10 KG), Frequency of lift (3 lifts/minute, 9 lifts/minute), and duration of lift (5 min, 10 min)

    As you can see each of my independent variables (fixed values) has a high level and low level and a total of 8 combinations will be obtained as a result of their interaction.

    My question is if I want to perform a multiple linear regression, what type of data are my independent variables?

    My guess is they are not continuous, but categorical. And within categorical, they are not nominal but are ordinal.
    In case they are ordinal, can I treat them as continuous in my analysis?

    Thank you in advance for your kind replies!

  2. #2
    TS Contributor
    Points: 12,227, Level: 72
    Level completed: 45%, Points required for next Level: 223
    rogojel's Avatar
    Location
    I work in Europe, live in Hungary
    Posts
    1,470
    Thanks
    160
    Thanked 332 Times in 312 Posts

    Re: Categorical or Continuous ?


    hi,
    this looks like a simple full factorial experiment. Yes, you can treat the variables as continuous.

    regards

+ Reply to Thread

           




Tags for this Thread

Posting Permissions

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






Advertise on Talk Stats