RELIABILITY AND VALIDITY IN RESEARCH INSTRUMENTS
| QUESTIONS AND ANSWERS | VERIFIED QUESTION AND
ANSWER | GRADED A+ | LATEST UPDATE 2025/2026
1. 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.-ANSWER Convergent validity
2. A researcher performs a series of pilot studies to evaluate whether a
measurement tool produces consistent results.-ANSWER Reliability
3. 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.-
ANSWER Reliability
4. In a research study, ambulatory clinic nurses teach children with asthma how
to monitor peak expiratory flow volumes and how to use metered-dose
inhalers to determine whether asthma control scores improve. The researcher
discovers inconsistencies in how these measures were taught and how well
the children understood the concepts.-ANSWER Intervention fidelity
5. A researcher reviews demographic characteristics of potential study subjects,
such as age and gender, to determine whether these characteristics may
influence the outcome of the study.-ANSWER Internal validity
6. A researcher conducts a quasi-experimental study to determine whether there
is improved weight gain among premature infants who are fed according to
| QUESTIONS AND ANSWERS | VERIFIED QUESTION AND
ANSWER | GRADED A+ | LATEST UPDATE 2025/2026
1. 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.-ANSWER Convergent validity
2. A researcher performs a series of pilot studies to evaluate whether a
measurement tool produces consistent results.-ANSWER Reliability
3. 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.-
ANSWER Reliability
4. In a research study, ambulatory clinic nurses teach children with asthma how
to monitor peak expiratory flow volumes and how to use metered-dose
inhalers to determine whether asthma control scores improve. The researcher
discovers inconsistencies in how these measures were taught and how well
the children understood the concepts.-ANSWER Intervention fidelity
5. A researcher reviews demographic characteristics of potential study subjects,
such as age and gender, to determine whether these characteristics may
influence the outcome of the study.-ANSWER Internal validity
6. A researcher conducts a quasi-experimental study to determine whether there
is improved weight gain among premature infants who are fed according to
