1. What is the dependent variable(s) in the research question “Is the quality of life of nursing home residents affected by their functional ability or hearing acuity”? [ONE POINT] A. Quality of life...

1.    What is the dependent variable(s) in the research question “Is the quality of life of nursing home residents affected by their functional ability or hearing acuity”? [ONE POINT]


A.    Quality of life
B.    Functional ability
C.    Hearing acuity
D.    Nursing home residents




2.    Tell whether the following statement is true or false: [THREE POINTS]


A.    Outcome research examines the quality and effectiveness of health care and nursing services.                             TRUE        FALSE


B.    Reliability is the degree to which an instrument measures what it is supposed to measure.                             TRUE        FALSE


C.    Researchers usually sample from the target population.         TRUE        FALSE


D.    Probability sampling involves random selection of elements.     TRUE        FALSE


E.    Point estimation through statistical procedures enables researchers to make objective decisions about the validity of their hypotheses.         TRUE         FALSE


F.    Internal consistency reliability is the extent to which the different items of the scale are not reliably and consistently measuring attribute         TRUE         FALSE




3.    The nurse researcher is reading about linear regression. What is simple linear regression? [ONE POINT]
a.    Make predictions about the values of one variable based on values of a second variable
b.    Make predictions about the values of two variables based on values of a third and fourth variables
c.    Method of predicting a continuous dependent variable on the basis of two or more independent variables
d.    Method of predicting a continuous independent variable on the basis of two or more predictor variables


4.    The nurse researcher is reading about multiple regression. What is multiple regression? [ONE POINT]
a.    Make predictions about the values of one variable based on values of a second variable
b.    Make predictions about the values of two variables based on values of a third and fourth variables
c.    Method of predicting a continuous dependent variable on the basis of two or more independent variables
d.    Method of predicting a continuous independent variable on the basis of two or more predictor variables


5.    Which is the best statement that differentiates between the sizes of samples and populations? [ONE POINT]
a.     A sample has a maximum size; a population does not.
b.     A sample cannot be the same size as a population.
c.     If a person is a member of a population, he or she is a member of the sample chosen from that population.
d.     A population is usually larger than a sample.


6.    Which of the following items is different when comparing probability sampling and non-probability sampling? [ONE POINT]
a.    The type of descriptive statistics applied to the sample
b.    The size of the sample
c.     The relative chance of being selected as a study participant
d.     Whether or not the findings can be generalized
7.    In a given research study, the findings reveal that as A increases, B also increases, that the relationship is linear, and that the strength of the relationship is 0.78. What type of relationship is this? (Select all that apply.) [TWO POINTS]
a.    Positive
b.    Negative
c.    Inverse
d.    None
e.    Causational
f.    Correlational


8.    The director of a major hospital complex conducts a study to discover the types of critical incidents that have occurred in this hospital and its sister hospital over the past five years. She makes a list of every critical incident that has occurred over this period. Choose the true statements about this list. (Select all that apply.) [ONE POINT]
a. The list is the dependent variable.
b. The list represents the hospital director’s assumptions.
c. The list is an extraneous variable.
d. The list represents the sample.
e. If the two hospitals have been in operation only five years, the list represents the population.


9.    A researcher identifies three variables and formulates a hypothesis that links them. That hypothesis is testable. What does it mean that the hypothesis is testable? [ONE POINT]
a. All the variables in the hypothesis are measurable.
b. The hypothesis must be replaced by a research question.
c. The value of the hypothesis is low.
d. The hypothesis is causational.


10.    The following statement is an example of which of the following?
There is no measurable difference in incidence of incarceration for adolescent children whose mothers work outside the home in comparison with those whose mothers do not work outside the home. [ONE POINT]
a. Null hypothesis
b. Confounding variable
c. Research objective
d. Research question


11.    In the following hypothesis, what is the dependent variable?
There is no measurable difference in incidence of acne in 15-year-olds who are placed on a chocolate-free diet. [ONE POINT]
a. Fifteen-year-olds
b. No chocolate in the diet
c. Chocolate in the diet
d. Acne


12.    In the following research question, what is the independent variable?