A researcher is studying stress and various factors that seem to be related to it, in women with terminally ill spouses
Among other things, the researcher finds out that depression contributes to total stress; depression contributes to lack of exercise; a decreased amount of exercise contributes to depression; exercise relieves stress; guilt contributes to depression; exercise has no effect on guilt, but it affects total stress; stress worsens depression; and stress decreases motivation to perform exercise. This is an example of what problem commonly encountered in regression analyses?
a. Multicollinearity
b. Hazard ratio
c. Odds ratio
d. Predictive validity
ANS: A
Multicollinearity occurs when the independent variables in a multiple regression equation are strongly correlated with one another. The presence of multicollinearity does not affect predictive power; rather it causes problems related to generalizability and the stability of the findings. The first step in identifying multicollinearity is to examine the bivariate correlations among the independent variables.
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The Internet offers a number of unique ways to market the organization. What are some of the ways companies use the Internet to create interest in their unique goods or services? Standard Text: Select all that apply
1. Securing domain names for a business 2. Arranging for e-mail addresses 3. Hosting one or more websites 4. Designing a company website. 5. Creating application for smart phones
Ms. Vela wants to know how many calories her infant should consume each day. Your answer is based upon your understanding of the metabolism of infants. The caloric needs of infants are calculated in proportion to their height and weight because:
a. The body surface area of young children is less in relation to body weight than in an adultB. The metabolic rate of children is lower than the metabolic rate of adultsC. The metabolic rate of children is higher than the metabolic rate of adults D. Infants require less calories, minerals, vitamins, and fluid in proportion to their weight than do adults
An experienced ICU manager is orienting a medical–surgical nurse manager to the organization. Throughout the day, the ICU manager has a notepad and pen in her pocket, and makes notes
The new manager inquires why the ICU manager is taking so many notes. Why is the experienced manager taking notes? 1. Saves time in the long term. 2. Is just the management style. 3. To most effectively address issues 4. Can be used in shift report.
Given the severe nursing shortage, nurse managers should give their attention to retention efforts. Nurse managers understand that it is important to:
a. Meet the psychosocial needs of personnel b. Encourage nurses to reapply for jobs from which they were fired c. Inform nurses of the disadvantages of the job d. Choose nurses who have been educated in other countries