Statistical Analysis Stack Exchange
Statistical Analysis Stack Exchange

Questions tagged [scales]

Scales used to express measurements. Usually ratio, interval, ordinal or nominal types of scales are recognized. Dichotomous and count types are sometimes seen as their own. Other classifications exist. [For "scale" as a sum of individual items in psychometry - see also tag 'psychometrics'.]

See the original article:

S. S. Stevens, On the Theory of Scales of Measurement.

For modern criticism, a good place to begin is:

Paul Velleman and Leland Wilkinson, Nominal, Ordinal, Interval, and Ratio Typologies are Misleading. http://www.cs.uic.edu/~wilkinson/Publications/stevens.pdf

407 questions
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Revert minmax normalization to original value

I'm training a neural network. Normalization of inputs and outputs (training data) is carried out using min and max to a scale of [0-1]. I'm applying backpropagation learning algorithm. I need to get the error offset. i.e. error = actual output $-$…
user3187494
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Are ratio, interval, ordinal and nominal variables nested?

It seems to me that ratio, interval, ordinal and nominal variables nested in the following sense: A ratio variable is also interval, ordinal and nominal. An interval variable is also ordinal and nominal. An ordinal variable is also nominal Are the…
docstudent
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Scale creation - how to know if concept B is part of concept A, or a separate concept

I have to create a survey that will measure customers' attitude to home products. Imagine: I have concept A (it could be consumer ethnocentrism, for example). I am going to measure it using 10 items (Likert scale). I have concept B (it could be…
renathy
  • 467
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Which measurement level would this be?

I have a variable times of collaboration: the possible answers are 0 (meaning no collaboration), 1, 2, or 3. Would this mean I am dealing with an interval measurement level?
vincitus
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Independent Subscales

What properties should there of a subscale to be used independently of the whole scale? I am looking for a scale that measures a specific perceived parenting style, but there is no scale for it. Instead every other scale has multiple constructs.…
Rabab Saeed
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comparing the performance of a score across different populations2

A very well validated score exists. This score predicts mortality after disease A when patients present from country W . The score is a 4 point score. If a subject presents from the community with disease A and his score is 1, mortality is x1. If a…
Ali Mansour
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comparing the performance of a score across different populations

A very well validated score exists. This score predicts mortality after disease A when patients present from country W . The score is a 4 point score. If a subject presents from the community with disease A and his score is 1, mortality is x1. If…
Ali Mansour
  • 21
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2 answers

comparing 2 surveys on same question but with 2 different scales

I have results from 2 surveys asking the same question. One allows for a single answer, the other allows for up to 2 answers. Is there any way to compare the 2 surveys? He are the numbers: Survey A: "why do you do x?" Answer up to 2 options option…
Renaud
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Is there a correct way of comparing two different 'scales' of the same range?

Is there a correct way of comparing two different scales (for example; data which comes from a 4 option question and data which comes from a 7 option question) given that both datasets have the same range (for example; both the 4 option and 7 option…
intex
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Question about scales and z-scores

I have 1000+ evaluations of 65 students by faculty. Two different eval forms, each evaluating the student in 5 areas, but 2 different scales: 1 a 3-pt scale; the other a 4-point scale.I'm thinking that to make the final report card for each…
JenD
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Age rounded down. Ordinal or Ratio?

Usually age is rounded down (i.e $15.7\simeq 15$). So shouldn't we treat it as an ordinal and not a ratio scale variable? If this is a duplicate question, please refer me to the duplicated question.
Ahmed Ali
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tests one multi-question item effect on another multi-question item

I have two Constructs (composite variables), each Construct has its own measurement scale (questions). First Construct is named CETSCALE and it consists of 17 questions, second Construct consists of 6 (or 5) questions (PERC_QUAL). I want ot test if…
renathy
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Is there something like an absolute scale type?

Some measures seem to be of a different type to others, depending on what kind of statements are meaningful. Different scale types try to capture that difference. Known interval scale types are: Nominal Ordinal Interval Ratio The great thing is,…
Mahoni
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Determining the scale type

I have different functions, that measure characteristics like completeness or reputation. I try to find out on what scale types they are (nominal, ordinal, interval, ratio or absolute). Most of the functions map to values between $0.0$ and $1.0$. I…
Mahoni
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Whether location is nominal or ordinal in this case?

I have a variable in my data 'location'. It has two categories: 'busy' and 'less busy'. Should I treat it as nominal or ordinal? I think it should be treated as ordinal.
Joy
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