SCS Study Guide- EBP

Question 1

if a test is positive and they really have the disease, it is a ____-

Answer 1

true positive

Question 2

if the test is positive and they do not have the disease, this is a

Answer 2

false positive

Question 3

if the test is negative, but they have the disease

Answer 3

false positive

Question 4

if the test is negative and they do not have the disease

Answer 4

true negative

Question 5

sensitivity

Answer 5

those with the disease who have a positive result

looking at true (+)

SNOUT

Question 6

specificity

Answer 6

portion of those without the disease that have a true (-)

true (-) rate,

SPIN

Question 7

sensitivity avoids the

Answer 7

false negative

Question 8

specificity avoids the

Answer 8

false positive

Question 9

type I error

Answer 9

false (+), using a treatment that is no better than the alternative

Question 10

type II error

Answer 10

false (-)
not using a treatment because it said no difference, but in reality, it was better

Question 11

if you have a high sensitivity, the rate of having a false (-) must be…

Answer 11

low

Question 12

if you have a high specificity, the rate of having a false (+) must be…

Answer 12

low

Question 13

positive predictive value

Answer 13

proportion of positive tests that are true positives

Question 14

negative predictive value

Answer 14

those negative tests that are true negatives

Question 15

as prevalence increase, what happens to PPV and NPV

Answer 15

PPV increases and NPV decreases

Question 16

is LR affected by prevlanace

Answer 16

no, minimally

Question 17

face validity

Answer 17

the instrument tested what is was supposed to test

Question 18

content validity

Answer 18

sample measurements represent the whole

Question 19

criterion related
concurrent and predictive

Answer 19

relationship to gold standard.
concurrent: validity when measures are taken at the same time

predictive: outcome can be used to predict future outcomes

Question 20

construct

Answer 20

assesses ability of instrument to measure a theoretical hypothesis

Question 21

case study

Answer 21

looks at one thing at depth

Question 22

case-control study

Answer 22

descriptive research, subjects are chosen based on having/no-having disease, and then determines a previous exposure

Question 23

longitudinal study

Answer 23

collect data over time, usually looking to describe developmental changes

Question 24

randomized control trial

Answer 24

clinical treatment compared to control, subjects randomly assigned.

Question 25

alpha levels

Answer 25

level of stat sig
risk of type I error

Question 26

beta

Answer 26

type II error

Question 27

ANOVA

Answer 27

comparison of 3 or more treatment groups

Question 28

level or significance

Answer 28

probability that a finding could be due to chance, traditionally set at 0.05

Question 29

dependent variable

Answer 29

variable response depends on another

Question 30

independent variable

Answer 30

variable manipulated or controlled by investigator

Question 31

Hawthorne effect

Answer 31

subjects knowledge of being part of study effects performance

Question 32

interrater reliability

Answer 32

degree to which two or more testers can obtain same rating on multiple occasions

Question 33

intrarater reliability

Answer 33

degree to which one tester can obtain same findings on multiple occasions

Question 34

kappa

Answer 34

0.81-1: almost perfect agreement

0.61-0.8: substantial agreement

Question 35

standard error of measurement

Answer 35

estimating standard error in set of repeated scores

Question 36

minimal clinical importance difference

Answer 36

amount of change which represents actual change to a patient