NR 449 WEEK 4 EDAPTS (LATEST UPDATE) REAL
QUESTIONS AND VERIFIED ANSWERS |100% CORRECT |
ALREADY GRADED A
Systematic error Ans✓✓✓ more serious effect on the study results and
is any error that is predictable and consistently biased
Random error Ans✓✓✓ expected and is typically due to human error,
confusion, bias, and normal environmental variations
sampling error Ans✓✓✓ an error that occurs when a sample somehow
does not represent the target population
saturation Ans✓✓✓ when the researcher concludes that responses are
repetitive and no new information is being generated
saturation error Ans✓✓✓ failure to achieve saturation
Secondary data Ans✓✓✓ previously collected by another researcher and
will be analyzed for the current research study
Primary data Ans✓✓✓ recorded by the researcher directly from a
subject and are considered the most reliable
test-retest correlation coefficient Ans✓✓✓ how stability over time is
measured
, Cronbach's alpha Ans✓✓✓ how internal reliability is measured
item-total correlation Ans✓✓✓ how stability among individuals is
measured
Cohen's kappa Ans✓✓✓ used to document inter-rater reliability
conceptual definition Ans✓✓✓ describes the variable using other
concepts. Conceptual definitions ensure the researcher is measuring the
correct thing
operational definition Ans✓✓✓ describes the operations that must be
performed to accurately represent the variable
Physiologic measurement Ans✓✓✓ involves the assignment of a
number or value to a subject's biological functioning
Psychometric Instrumentation Ans✓✓✓ Instruments used to collect
subjective data from subjects
Surveys and Questionnaires Ans✓✓✓ most commonly used data
collection tool, which gathers information from subjects about
experiences, behaviors, attitudes, or perceptions
QUESTIONS AND VERIFIED ANSWERS |100% CORRECT |
ALREADY GRADED A
Systematic error Ans✓✓✓ more serious effect on the study results and
is any error that is predictable and consistently biased
Random error Ans✓✓✓ expected and is typically due to human error,
confusion, bias, and normal environmental variations
sampling error Ans✓✓✓ an error that occurs when a sample somehow
does not represent the target population
saturation Ans✓✓✓ when the researcher concludes that responses are
repetitive and no new information is being generated
saturation error Ans✓✓✓ failure to achieve saturation
Secondary data Ans✓✓✓ previously collected by another researcher and
will be analyzed for the current research study
Primary data Ans✓✓✓ recorded by the researcher directly from a
subject and are considered the most reliable
test-retest correlation coefficient Ans✓✓✓ how stability over time is
measured
, Cronbach's alpha Ans✓✓✓ how internal reliability is measured
item-total correlation Ans✓✓✓ how stability among individuals is
measured
Cohen's kappa Ans✓✓✓ used to document inter-rater reliability
conceptual definition Ans✓✓✓ describes the variable using other
concepts. Conceptual definitions ensure the researcher is measuring the
correct thing
operational definition Ans✓✓✓ describes the operations that must be
performed to accurately represent the variable
Physiologic measurement Ans✓✓✓ involves the assignment of a
number or value to a subject's biological functioning
Psychometric Instrumentation Ans✓✓✓ Instruments used to collect
subjective data from subjects
Surveys and Questionnaires Ans✓✓✓ most commonly used data
collection tool, which gathers information from subjects about
experiences, behaviors, attitudes, or perceptions
