Questions tagged [composite]
A composite score is a single score that represents a combination of information from either multiple variables or multiple data points.
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Creating a single index from several principal components or factors retained from PCA/FA
I am using Principal Component Analysis (PCA) to create an index required for my research. My question is how I should create a single index by using the retained principal components calculated ...
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How do I weigh several variables at two levels to create an overall composite variable score?
Context
I am trying to find the correlation between two latent variables. Let's call them A and B.
A has two dimensions. Let's call them Dimension 1 and 2.
B also has two dimensions. Let's call ...
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Can I combine several ordinal questions to create an index and/or composite measure?
I am using a survey that contains several questions about various dimensions of performance for policy research institutes. Here, performance in the policy arena is unpacked into things like:
quality ...
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Likert scale based composite variables
I am conducting a small research into the adoption of smart home technologies for elderly people. In this research I have conducted both questionnaires and interviews, with the questionnaire being ...
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Is subjective weighting acceptable to create composites for correlation analysis?
Following on from my related questions on weighting scales at multiple levels and differences between indexes and composites, I have two composite scores, X and Y.
Both have been constructed through ...
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Standardization of index components without mean centering
There are many questions and answers (see here for example) related to standandardization of variables, carried out by taking a value, subtracting the mean (centering) and dividing by standard ...
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Is there a difference between an index score and a composite score?
Following on from my previous question on forming scale scores, my sample has 100 people who have answered 10 likert scale questions each on two academic subjects: Maths and English.
The likert ...
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Advice on scientifically sound scale construction
I've been given a set of 20 Likert-items (ranging from 1-5, sample size n = 299) within the field of organizational research. The items are intended to measure a latent concept which is ...
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What is the best way of weighing cardinal scores and Likert scale scores to create a composite score?
I can't thank the experts enough for their clarifications. One final question following my earlier posts on forming coomposite variables here, here, and here.
If I have measured some variables as ...
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Comparing ways to create a composite score
Objective:
I have biomarkers $X_1,\ldots,X_p$ (all in continuous scale) and a binary dependent variable $Y$. Because $p$ is large (there are many biomarkers), I want to make a composite score ...
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Is it typical for group means of composite z-scores to have means with values of the same magnitude but opposite signs?
I developed a composite score by converting four items to z-scores, then I summed up the z-scores to form a composite measure.
However, when I've calculated means to compare finding for two ...
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providing mean, sd, and correlations in sem
it is advised to provide mean, sd, and correlations of the data as the best practices in writing sem. However, the books I read did not mention how to obtain or provide those scores from the latent ...
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High odds ratio for composite score created by ridge regression
This question is a follow up to one of my previous questions asked on this site. The goal was to create a composite score for biomarkers related to a binary outcome and then use that in a regression ...
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Are the confidence intervals of logit model coefficients normally distributed?
In more detail to the above...
I have a GLM with a logit link examining behaviours (success = 1, failure = 0) across some quite large datasets (n ~ 30,000 to 3,000,000). The IVs are standardised and ...
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How to assess the reliability of a composite scores?
Following my earlier question here, is there a quick way (using Excel or SPSS) to ascertain/calculate the reliability of composite scores.
Reliability in this case is for me to say confidently (i.e. ...
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