RD Exam Review Questions And
Answers.
A researcher states in the introduction to his experimental study that he expects his
research will show that a high intake of psyllium fiber will decrease LDL cholesterol.
This is an example of:
A. Bias
B. Inferential Statistics
C. Opinion
D. Descriptive research -
\Bias
Bias is the conscious or unconscious influence of the researcher on the outcome of
research.
A glucometer is checked for accuracy by correlating the readings to serum glucose
levels. Repeatedly, the readings are precisely the same. This indicates:
A. Accuracy
B. Validity
C. Precision
D. Reliability -
\Validity
Validity indicates whether the device measures what it is intended to measure.
Reliability refers to the consistency and accuracy with which a device measures
something in the same way in each situation. Validity infers reliability.
A dietitian in an extended care facility is doing a study on the acceptance of a new
menu item. He asks residents their opinion of the item as they leave the dining room.
The means used to collect data is:
A. randomization
B. Interview
C. Questionnaire
D. Observation -
\Interview
In an interview, the subjects are self-reporting their reactions, opinions, or feelings.
A dietitian leads a small group discussion for WIC clients on ways to increase iron
intake for toddlers. The effectiveness of this educational session would be be measured
by:
Answers.
A researcher states in the introduction to his experimental study that he expects his
research will show that a high intake of psyllium fiber will decrease LDL cholesterol.
This is an example of:
A. Bias
B. Inferential Statistics
C. Opinion
D. Descriptive research -
\Bias
Bias is the conscious or unconscious influence of the researcher on the outcome of
research.
A glucometer is checked for accuracy by correlating the readings to serum glucose
levels. Repeatedly, the readings are precisely the same. This indicates:
A. Accuracy
B. Validity
C. Precision
D. Reliability -
\Validity
Validity indicates whether the device measures what it is intended to measure.
Reliability refers to the consistency and accuracy with which a device measures
something in the same way in each situation. Validity infers reliability.
A dietitian in an extended care facility is doing a study on the acceptance of a new
menu item. He asks residents their opinion of the item as they leave the dining room.
The means used to collect data is:
A. randomization
B. Interview
C. Questionnaire
D. Observation -
\Interview
In an interview, the subjects are self-reporting their reactions, opinions, or feelings.
A dietitian leads a small group discussion for WIC clients on ways to increase iron
intake for toddlers. The effectiveness of this educational session would be be measured
by:
