Week 10 quiz

Question 1

importance of study appraisal

Answer 1

critical appraisal involves judging whether evidence is free of bias and evaluating the strengths / limitations

**important for pt safety and efficiency

Question 2

PRISMA checklist

Answer 2

preferred reporting items for systematic reviews and meta-analysis checklist

Question 3

PRISMA

Answer 3

includes points concerned with every aspect of systematic reviews and guidelines for the IMRAD

Question 4

IMRAD

Answer 4

introduction
methods
results
discussion

Question 5

study validity

Answer 5

measure of truth / accuracy of a claim
-ability to accept results as logical, reasonable, justifiable

Question 6

internal validity

Answer 6

the IV is responsible for the observed change in the DV

Question 7

internal validity threats

Answer 7

selection bias
history effect
maturation
mortality / subject attrition
testing effect
instrumentation

Question 8

selection bias

Answer 8

occurs with preexisting differences between groups

Question 9

history effect

Answer 9

effects of unexpected events that take place concurrently with the IV

Question 10

maturation

Answer 10

changes occurring within a participant as a result of passage of time not the IV

Question 11

mortality / subject attrition

Answer 11

loss of participants before study is complete

Question 12

testing effect

Answer 12

experience with measurement instrument - pretest

Question 13

instrumentation

Answer 13

inaccurate data collection / changes in methods of measurement or collector

Question 14

construct validity

Answer 14

threat to validity when instruments used do not accurately measure concepts

Question 15

construct validity threats

Answer 15

bias
confounding
reactivity
experimenter expectancies

Question 16

reactivity

Answer 16

participants change behavior or performance in response to being observed

Question 17

statistical conclusion validity

Answer 17

are the results of the statistical analysis accurate and reflect the relationship b/t IV and DV

Question 18

statistical conclusion threats

Answer 18

low statistical power
low reliability of measures
low reliability of treatment implementation

Question 19

external validity

Answer 19

do results of study apply to broader subjects / settings / times

Question 20

external validity threats

Answer 20

selection effects
interactions

Question 21

selection effects

Answer 21

sample does not represent population

Question 22

study with internal validity….

Answer 22

the intervention is the source of the DV change

Question 23

study with construct validity…

Answer 23

selection / measurement measures concept accurately

Question 24

study has external validity….

Answer 24

if results can be generalized

Question 25

reliability

Answer 25

consistency of research study or measuring test

Question 26

appraising evidence

Answer 26

1. PICO
2. search relevant evidence
3. gather multiple types of evidence
4. appraise evidence

**possible bias, methods, limits, strengths, LOE