Chapter 10 Flashcards
The researcher understands that which of the following would be an example of systematic error?
A thermometer that indicates the body temperature as 0.1°F higher than the accurate temperature.
The researcher understands which of the following pertains to using focus groups?
People feel free to express their views.
The reliability and validity of physiological measures
None of the above
Which of the following recruitment strategies would be the most effective in obtaining the desired number of subjects?
Direct contact
The nurse understands that homogeneity includes which of the following?
Examines the correlation of various items within a scale
Which statement accurately describes control in the study design?
The research report needs to reflect the controls implemented in a study and any problems that needed to be managed during the study.
The researcher understands the precision of physiological measures is related to which of the following?
Maintained by recalibration of instruments
The degree of reproducibility of measurements
Part of quality control testing
The researcher understands that sensitivity of physiological measures is related to which of the following?
Amount of change that can be measured precisely
The nurse understands that reliability includes which of the following?
Is concerned with the consistency of measurement
Observational measures are used most commonly in _______________ research.
qualitative
Data collected from previous research and stored in a database are considered ____________ data.
secondary
Which of the following is an example of random measurement error?
Punching the wrong key when entering data into the computer
The nurse understands that measurement errors can be related to which of the following?
The difference between the true score and what is measured
A theoretical framework
Survey tools
The researcher would like to produce trustworthy data from measurements used in a study. Which of the following would the researcher ensure?
Measurement error is reduced.
Values are assigned consistently from one subject to another.
Rules are provided to guide measurement.
Which of the following is a serious threat to the validity of mailed questionnaires?
Thirty percent of potential subjects return them.
Grades on a multiple choice final examination are an example of which level of measurement?
Ratio
The researcher understands the following to be true when data collection forms are used to record
information provided orally by subject or family.
demographic data.
data from the patient record.
The nurse understands that test-retest reliability includes which of the following?
Assumes that variability in values is a result of measurement error
Assumes that the variable to be measured will remain the same at two testing times
Assesses the consistency of repeated measures
Which of the following concern measurement reliability? Select all that apply.
Accuracy
Consistency of measurement
Which of the following is not an example of a scale?
Questionnaire
Evidence of validity of measurement can be obtained from examining which of the following?
Contrasting groups
Which of the following scales measures pain with facial expressions instead of numbers?
Visual analog scale
Which of the following best describes physiological measures?
They are described in detail in well-written research reports.
Which of the following should the researcher do when recruiting subjects for a study?
Follow the sampling criteria.
In a published study, which of the following information should be provided about the data collection process?
Number of potential subjects who declined to participate
The timing and settings in which measurements were taken
Strategies used to approach potential subjects
