Flashcards in Exam 2 Quantitative Measurement Deck (67)
Where is data collection found?
Methods section of the article.
Rule of thumb
"Garbage in, garbage out" If you make poor measurements, you're going to get bad results
Pretest tools. Why?
Performs as expected
Ease of administration
Data is plural, datum singular
Different word, same thing
how to measure something.
Example: A way to measure pain...facial expression, body language
An instrument (or tool) that has been checked for reliability/validity, always will work the same
Take a general topic, break it down
As accurate as possible
Applies to the general population
Tidy flow...visually aesthetic
Specific to topic...
Example: DEPRESSION, not anxiety or sadness
Time appropriate, cost appropriate
High(forces subject to pick a specific answer), middle, low(open ended questions)
Ability of data to be recorded by numbers
To what extend does the subject know they are being observed/assessed
To what extend are the results subject to bias
Observational checklist - unique to this design
Questionnaire - very popular
Biophysical Measurement...why use?
Relevance to nursing (BP, HR, Temp, Lab values...etc)
Impact of nursing actions
Evaluate nursing procedures
Find health related correlations
Biophysical Measurements need to be...
Appropriately collected, recorded, stored, tested, and reported
Interviews, written questionnaires, etc
Checklists, observational rating scales
Ex: strongly agree, agree, undecided, disagree, strongly disagree
Visual Analog Scale (VAS)
100mm line, subject places vertical line on scale based on their answer.
Forced choices, range
Ex: range of sad to happy, five blank lines, place check mark saying how happy you feel.
Sort index cards into piles...agree/disagree, then agree/strongly agree; strongly disagree/disagree
Appropriate for right brained people/children
Ex: Ink blots, pictures, music. Opinions are projected on the image
Criteria when examining tools
Appropriate (to question/design/population)
Acceptable to subject
Reliable and valid