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Assignment 3; Reliability and Validity in
Research Instruments Questions and
Verified Answers
A researcher administers a scale measuring self-confidence and one
measuring self-doubt to a group of subjects and performs a correlational
analysis of the results. - ANS Divergent validity
A researcher conducts a quasi-experimental study to determine whether
there is improved weight gain among premature infants who are fed
according to cue-based protocols. The researcher trained neonatal
intensive care nurses to apply cue-based feeding to orally fed infants and
notes a statistical difference in weight gain between infants fed according to
cue-based protocols and those fed according to standard protocols. The
reviewer notes that parents who gave consent to participate in the study
were from a higher socioeconomic class than the population as a whole.
This is a threat to: - ANSExternal validity
A researcher develops a 7-point Likert scale to evaluate feelings of well-
being in patients who are undergoing chemotherapy. The researcher
administers this measure to other, similar patients in other medical centers.
- ANSReliability
A researcher develops a new instrument to measure coping skills and
conducts a pilot study to compare the new tool with an existing tool that
measures this concept. - ANSConvergent validity
1
Assignment 3; Reliability and Validity in
Research Instruments Questions and
Verified Answers
A researcher administers a scale measuring self-confidence and one
measuring self-doubt to a group of subjects and performs a correlational
analysis of the results. - ANS Divergent validity
A researcher conducts a quasi-experimental study to determine whether
there is improved weight gain among premature infants who are fed
according to cue-based protocols. The researcher trained neonatal
intensive care nurses to apply cue-based feeding to orally fed infants and
notes a statistical difference in weight gain between infants fed according to
cue-based protocols and those fed according to standard protocols. The
reviewer notes that parents who gave consent to participate in the study
were from a higher socioeconomic class than the population as a whole.
This is a threat to: - ANSExternal validity
A researcher develops a 7-point Likert scale to evaluate feelings of well-
being in patients who are undergoing chemotherapy. The researcher
administers this measure to other, similar patients in other medical centers.
- ANSReliability
A researcher develops a new instrument to measure coping skills and
conducts a pilot study to compare the new tool with an existing tool that
measures this concept. - ANSConvergent validity
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