Shortening of the Pittsburgh Sleep Quality Index Survey Using Factor Analysis

Sleep Disorders
Oluremi A FamoduMelissa D Olfert

Abstract

Lengthy surveys have the potential to burden users and can lead to inaccuracies. Conducting analyses to shorten existing validated surveys is beneficial. The objective, therefore, was to shorten the Pittsburgh Quality Sleep Index (PSQI) for young adults. PSQI data from 1246 college students were used. An exploratory factor analysis (FA) was utilized to shorten survey after dropping select items. Nonparametric correlation analysis (Spearman's rho) was conducted between the global sleep scores of the shortened and original surveys. Agreements tests (Kappa and McNemar's test) measured the agreement of the surveys and sensitivity and specificity were evaluated. Six factors were examined using maximum likelihood factoring method, applying squared multiple correlations with Promax rotation to allow for correlated variables. FA with six factors explained 100% of shared variance based on eigenvalues and accounted for 61% of variability based on variables. The FA resulted in 13 selected questions ("shortPSQI"), corresponding to 5 of the 7 components of the original survey. High correlation was found between the global scores of the original survey and the "shortPSQI" (rho = 0.94, p < 0.001). When the global score was converted to the ca...Continue Reading

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References

May 2, 2000·American Journal of Preventive Medicine·G BlockC Jenson
Jan 5, 2002·Journal of American College Health : J of ACH·W C BuboltzB Soper
Apr 11, 2008·Journal of American College Health : J of ACH·Leanne M ForquerC Merle Johnson
Dec 17, 2008·Psychology, Health & Medicine·Raphaël Bize, Ronald C Plotnikoff
Jul 1, 2011·The American Journal of Clinical Nutrition·Marie-Pierre St-OngePeter J H Jones

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Citations

Mar 28, 2020·Sleep & Breathing = Schlaf & Atmung·Yuming WangShuai Zhang
Oct 4, 2020·Clinical Gastroenterology and Hepatology : the Official Clinical Practice Journal of the American Gastroenterological Association·Jana G HashashEva Szigethy

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Clinical Trials Mentioned

NCT02941497

Software Mentioned

SAS®
JMP
SAS

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