Question
Q1. Answer the following questions:
a. What are the independent variables?
b. What is(are) the dependent variable(s)?
c. What type of statistical technique was employed to analyze the relationship between the dependent and independent variables?
d. How would you as an administrator in this setting use the results of this analysis?
Environmental Determinants of Quality of Life in Nursing Home Residents with Severe Dementia Authors: Game Olmo Jo Lopez-Pousa Secumdinoi Turon-Estrada, Antoni 1.2.3 Juvin Dolors Ballester, David Vilalta-Franch, Joan 1,2,3 Source: Journal of the American Geriatrics Soci Jul2012, Vol. 60 Issue 7, p1230-1236. 7p. 4 objectives: To detemine the relationship between qualityof life (QOL and environmental factors of temperature, noise, and lighting in nursing home residents with severe dementia. Design Cross-sectional, observational, analytical. Setting Eight public, long-tem care nursing homes in the province of Girona, Spain. Participants Random sample of 160 musing home residents with severe dementia. Measurements Functional and cognitive impairment, pain, neuropsychiatric disturbances, and QOL were detemined using standardized instruments. Temperature, noise, and lighting in bedrooms dining rooms, and living rooms were measured in the moming and aftemo using a multifunction environment meter in a standardized manner. on Results Adjusted multivariate linear regression models demonstrated that environmental measures were independently associated with QOL, and related factors. High temperature in the bedroom was associated with lower QOL (standardized B 0.184), high noise levels in the living room were associated with low behavioral signs of social interactions (A -0.1960, and low lighting levels in the bedroom. were associated with number of signs of negative affective mood -0.135). Conclusion The QOL of nursing home residents with severe dementia was related to environmental factors such as temperatuure, noise, and lighting. The monitoring of these environmental factors may improve these individuals' QOL. [ABSTRACT FROM AUTHOR]
Explanation / Answer
a) dependent variable is Quality of Life.
b) Independent variables are temperture , noise , lighting in homes with patients of dementia
c) a linear regression was performed on the dependent variable. So QOL was regressed based on all the independent variables mentioned above :: temperture , noise , lighting in homes with patients of dementia
d) we shall study the coefficients of the independent variables. We would want the QOL to go up to have a better QOL . So if the value of the Beta coeffiecient is negative this means those variables negatively impact the QOL . Example : lighting levels negatively impact the QOL value as the Beta value is -0.135. Low lighting levels is adversely effecting the QOL , so this would be one area which needs improvement
Likewise
High teempertaure and high noise levels are also associated with low QOL values and these metrics must be improved too
