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McNally, & Robinaugh, & Wu, & Borsboom... (2015) Mental Disorders as Causal Systems: a network approach to PTSD

ABSTRACT>"Debates about posttraumatic stress disorder (PTSD) often turn on whether it is a timeless, cross-culturally valid natural phenomenon or a socially constructed idiom of distress. Most clinicians seem to favor the first view, differing only in whether they conceptualize PTSD as a discrete category or the upper end of a dimension of stress responsiveness. Yet both categorical and dimensional construals presuppose that PTSD symptoms are fallible indicators reflective of an underlying, latent variable. This presupposition has governed psychopathology research for decades, but it rests on problematic psychometric premises. In this article, we review an alternative, network perspective for conceptualizing mental disorders as causal systems of interacting symptoms, and we illustrate this perspective via analyses of PTSD symptoms reported by survivors of the Wenchuan earthquake in China. Finally, we foreshadow emerging computational methods that may disclose the causal structure of mental disorders."

Question:

I am needing help understanding the abstract. Perhaps it would make better sense if I could understand the meaning of "latent variable" and then perhaps I can interpret the limitations of latent variable approaches?

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All statistical tests are carried out at a =0.05. QUESTION ONE The following output represents data...

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Core or Assume the average price of a laptop computer is 5725 with a standard deviation...

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Consider the fragmentation of the delivery systems and the required regulations that impact MCOs

consider the fragmentation of the delivery systems and the required regulations that impact MCOs...

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Innova uses 1,050 units of the component IMC2 every month to manufacture one of its products....

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A young graduate engineer wants to know how much money she will need to invest each...

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Tanner-UNF Corporation acquired as a long-term investment $260 million of 8% bonds, dated July 1, on...

Tanner-UNF Corporation acquired as a long-term investment $260 million of 8% bonds, dated July 1, on July 1, 2018. The market interest rate (yield) was 10% for bonds of similar risk and maturity, Tanner-UNF paid $220 million for the bonds. The company will receive interest semiannually on June 30 an...

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Question 20 Mark this question In the process of project planning, which of the following statements...

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Simulate meiosis by drawing One pair of chromosomes and no crossing over Instructions: Set up your...

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G. Derive an expression for Ground Resistance of a hemisphere of radius "r" buried in soil...

G. Derive an expression for Ground Resistance of a hemisphere of radius "r" buried in soil with soil resistivity p....

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Describe, discuss, diagnose and comment on a type of PA / PM system you currently (or...

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8-35 Units-of-Production Depreciation Method The Rockland Transport Company has many trucks that have an estimated useful...

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How do you measure concentration of a solution?

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1. Jack will only consume toast and honey together in fixed proportions. In particular he likes...

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An airplane is flying east at a constant altitude of 28,000 meters

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