Statistical Analysis Stack Exchange
Statistical Analysis Stack Exchange

Questions tagged [composite]

87 questions
17
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2 answers

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 through PCA. For instance, I decided to retain 3…
user179313
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2 answers

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 of research, overall ability to engage with…
Philippe
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8
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2 answers

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 multidimensional, multifaceted and heterogenous in it's very…
Jack Shade
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4 answers

How to create one score from a mixed set of positive and negative variables?

I have 3,000 observations (administrative communities) characterized by five variables. Four of them work in the direction 'the more, the worse' and one goes in the opposite. I'd like to create one score or an ordered list of these observations that…
radek
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6
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1 answer

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 combining $X_1,\ldots,X_p$. However, not all the…
Blain Waan
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1 answer

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 cardinal numbers (e.g. 1, 2, 3, 4, 5 times) and…
Jasty West
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5
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1 answer

Hypotheses for the likelihood ratio test

My question is very simple and basic but it's confusing me. Suppose we have a $p$-parameter vector $\theta =\{\theta_{1}, \theta_{2}, \cdots, \theta_{p}\}$ and I wish to do a likelihood ratio test. The hypotheses that I want to test are: $H_{0}: ``…
Toney Shields
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How to form a meaningful statistical indicator to reflect user interaction with a website

A given user can interact in multiple ways with a website. Let's simplify a bit and say say a user can: Post a message Comment a message "like" something on the website via Facebook (after that we could add, following the site on twitter, buying…
marcgg
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4
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1 answer

What drives the test reliability of a composite based on three components?

Situation: A three part ability test with multiple-choice, essay, and oral components. I have scores for each of 110 test takers on each part and overall. The three parts are unequally weighted in computing the overall score. There is reason to…
Joel W.
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4
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2 answers

Bayesian Hypothesis Testing with Fair Coin Flip

Bayesian binary hypothesis testing problem in equal priors and uniform cost assignment (i.e., $c_{ij}=1$ for $i \neq j$ otherwise $0$) setting: Under hypothesis $\mathrm{H}_0$, the observation $Y$ is distributed with $p_0(y)$. Under hypothesis…
amipima
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4
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1 answer

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 them Dimension 3 and 4. The four dimensions (1, 2,…
Jasty West
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4
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Combining several variables into one outcome score: How is it done in the machine learning community?

I have got 8 cognitive (continuous) behaviour variables and would like to combine them into a composite score. I would then like to find the best predictors of this outcome (from about 50 predictors). I was interested if there are alternatives to…
Stats_Monkey
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3
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2 answers

Intuition behind SEM latent variables not being actual variables

There are essentially two ways, to my knowledge, to put together a number of numerical items that are all meant to quantify one abstract notion. One can average the items and create a composite score. This can be done in a more or less sophisticated…
Arnaud Mortier
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Are composite variables (eg. a score) valid to perfom a SEM in AMOS?

I have a resilience scale with 11 items (observed variables), from which I calculated the mean to get a "resilience score" (what would usually be an unobserved variable or latent construct in SEM terminology). Can I just use this resilience score…
JuanD
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3
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How do I combine two outcome measures from two different questionnaires into one variable?

I have been asked by a journal editor to combine two separate measures of child disruptive behaviour into one variable. One meaure is parent rated and is from the 36-item Eyberg Child Behaviour Checklist. It is measured on a 7-point likert scale and…
Melissa Duncombe
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