Measurement & Collection of Data/Reliability & Validity

Question 1

produce sound data; the assignment of numbers to objects according to specified rules to characterize qualities of some attribute

Answer 1

measurement

Question 2

providing consistency and guides development and use of measurement tools

Answer 2

measurement theory

Question 3

directness of measurement, measurement error

Answer 3

measurement theory concepts

Question 4

accuchecks, BP = CONCRETE

Answer 4

direct measurement

Question 5

pain scale (objective)

Answer 5

indirect measurement

Question 6

spans across entire sample

Answer 6

systematic error

Question 7

skewed based on someone specific

Answer 7

random error

Question 8

An evaluation of the measurement properties of a measure, such as its reliability and validity.

Answer 8

Psychometric assessment

Question 9

The extent to which a measurement is free from measurement error; more broadly, the extent to which scores for people who have not changed are the same for repeated measurements; a measure of the amount of potential random error in the measurement technique

Answer 9

reliability

Question 10

stability, equivalence, homogeneity

Answer 10

types of reliability

Question 11

same over and over; The type of reliability that concerns the extent to which scores for people who have not changed are the same when a measure is administered twice; an assessment of a measure’s stability.

Answer 11

test-retest reliability; stability

Question 12

the degree to which two raters or observers, working independently, assign the same ratings or values for an attribute being measured

Answer 12

equivalence; interrater reliability

Question 13

the degree to which objets are similar (characterized bt low variability); sometimes, a design strategy used to control confounding variables; Cronbach’s alpha

Answer 13

homogeneity; internal consistency

Question 14

measures extent to which performance on any one item is a good indicator of performance on other items; 70-90

Answer 14

Cronbach’s alpha

Question 15

the extent to which an instrument reflects the concept being examined; measures the use of the instrument for a specific group, not the instrument itself; content, criterion-related, construct

Answer 15

validity

Question 16

measurement includes all major elements; the degree to which a multi-item measure has an appropriate set of reliability

Answer 16

content validity

Question 17

measurement is consistent with what is already known

Answer 17

criterion-related validity

Question 18

measures how well the conceptual and operational definition match the variables

Answer 18

construct validity

Question 19

measurement methods used to quantify the level of significance and functioning of the participants

Answer 19

physiologic measures

Question 20

types of physiological measures

Answer 20

accuracy
selectivity
precision
sensitivity

Question 21

sources of error

Answer 21

environmental factors
operation of equipment
machine error
biological variability
human errors

Question 22

physiological measures

Answer 22

microbiological (smells, cultures)
physical measurement (EKG, BP, I&O)

Question 23

spontaneously observing and recoding what is going on

Answer 23

unstructured observations

Question 24

carefully defines what is to be observed and how observations are to be made

Answer 24

structured observations

Question 25

“tell me about…”

“what has been your experience with…”

Answer 25

unstructured (open-ended) interview

Question 26

structured questions without room for variable answers ; x or y?

Answer 26

structured (closed-ended) interview

Question 27

measures attitudes and beliefs; asked to select one of seven points (good…very good…)

Answer 27

semantic differentials

Question 28

provides a line with two different meanings on each end; indicate where you are on the line

Answer 28

visual analog scale (VAS)