Answer to Question 1
ANS: D
Demographic variables are characteristics or attributes of subjects that are collected to describe the sample.
Heart rate would not be considered a demographic variable. Demographic variables are characteristics or attributes of subjects that are collected to describe the sample.
Oral temperature would not be considered a demographic variable. Demographic variables are characteristics or attributes of subjects that are collected to describe the sample.
Pain intensity would not be considered a demographic variable. Demographic variables are characteristics or attributes of subjects that are collected to describe the sample.
Answer to Question 2
ANS: C
An operational definition is derived from a set of procedures or progressive acts that a researcher performs to receive sensory impressions that indicate the existence or degree of existence of a variable. An operational definition is developed so that a variable can be measured or manipulated in a concrete situation. In this example, pain is the sensory impression being measured on a numerical scale.
A hypothesis indicates the researcher's educated guess at what the outcome of the research will be. An associative hypothesis describes a predicted relationship that the researcher develops between the established variables being studied. This statement is an operational definition, not a hypothesis.
A conceptual definition is the theoretical meaning of a variable.
The problem statement indicates the gap in knowledge needed for practice and provides a basis for the study.
Summation of Heart Sounds, Paradoxical Splitting of S2
Summation of Heart Sounds, Soft S1
Negative feedback control of a regulated variable.
Return of oxygenated blood to the heart and entry into the aorta (red = oxygenated blood, blue = ...
Most drugs exhibit first-order elimination, in which the rate of drug elimination is equivalent to ...
Vessels of the heart: Posterior