Assignment 3: Reliability and Validity in Research Instruments

Assignment 3: Reliability and Validity in Research
Instruments
Due Jan 25 at 11:59pm Points 100 Questions 1
Available until Jan 27 at 11:59pm Time Limit None


Instructions
Quality measurement in research is essential. Measurement involves assigning numbers to concepts,
objects, events or situations following a set of rules derived by the researcher through instrumentation or
the use of tools for measurement. These measurements should be accurate and consistent. Chapter 16
in Gray, Groces and Sutherland (2017) explains the way that validity and reliability can be achieved.
Check out page 371. THIS ASSIGNMENT IS DUE BY END of WEEK 2


This quiz was locked Jan 27 at 11:59pm.



Attempt History
Attempt Time Score
LATEST Attempt 1 4 minutes 100 out of 100



Score for this quiz: 100 out of 100
Submitted Jan 20 at 11:28am
This attempt took 4 minutes.


Question 1 pts




Co
orrrec
ct! A researcher develops a Convergent validity
new instrument to measure
coping skills and conducts
a pilot study to compare
the new tool with an
existing tool that measures
this concept.
GMT -05:00

, Co
orrrec
ct! A researcher performs
x5 x5



a series of pilot
x5 x5 x5 x5



studies to evaluate
x5 x5 x5



whether a
x5 x5



measurement tool
x5 x5



produces consistent
x5 x5



results.
x5




Test -retest reliability
Co
orrrec
ct! A researcher develops a
x5 x5 x5



7- point Likert scale to
x5 x5 x5 x5 x5



evaluate feelings of well-
x5 x5 x5 x5



being in patients who
x5 x5 x5 x5



are undergoing
x5 x5



chemotherapy. The
x5 x5



researcher administers
x5 x5



this measure to other,
x5 x5 x5 x5



similar patients in other
x5 x5 x5 x5



medical centers.
x5 x5

Intervention kdelity

Co
orrrec
ct! In a research study,
x5 x5 x5



ambulatory clinic nurses
x5 x5 x5



teach children with
x5 x5 x5



asthma how to monitor
x5 x5 x5 x5



peak expiratory flow
x5 x5 x5



volumes and how to use
x5 x5 x5 x5 x5



metered- dose inhalers
x5 x5 x5



to determine whether
x5 x5 x5



asthma control scores
x5 x5 x5



improve. The researcher
x5 x5 x5



discovers
x5



x5 inconsistencies in how x5 x5



x5 these measures were
x5 x5



x5 taught and how well the x5 x5 x5 x5



x5 children understood the x5 x5

Internal validity
x5 concepts.


Co
orrrec
ct! A researcher reviews
x5 x5



demographic
x5



characteristics of
x5 x5



potential study subjects,
x5 x5 x5



such as age and
x5 x5 x5 x5