When the nurse researcher demonstrates that an instrument is ...

[geoffrey]

When the nurse researcher demonstrates that an instrument is highly reliable, which type of error is reduced?
 
  a. Random error
  b. Variance error
  c. Persistent error
  d. Systematic error

Question 2

An ear temperature probe that consistently reports body temperature at a degree lower than the patient's actual temperature has what type of reliability or validity problem?
 
  a. Reduced reliability, systematic error
  b. Reduced validity, random error
  c. Increased validity, systematic error
  d. Increased validity, random error

[rachel]

Answer to Question 1

ANS: D

Feedback
A Random error is connected with validity.
B Variance and error are connected as a research term, error variance, not the reverse; it is defined as variability in test scores.
C Persistent error is not a research term.
D Systematic error is connected with reliability.

Answer to Question 2

ANS: A

Feedback
A The instrument is systematically measuring temperature inaccurately.
B This response does not refer to random error.
C The validity of the instrument is not increased.
D The validity of the instrument is not increased.

[geoffrey]

Gracias!

[recede]

Thanks for the timely response, appreciate it