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Test your basic knowledge |
Behavioral Science
Start Test
Study First
Subject
:
health-sciences
Instructions:
Answer 40 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Number needed to treat equation
Researches belief in the outcome effects the outcome - vs Subjects realize they're being studied so they change their behavior
Walking - separation anxiety - understand 25% of what he says
1/absolute risk reduction
You catch the confounding error. Not a bias
2. Where does most abnl actions in sleep occur?
Stage 3
Need a certain amount of time before the result surfaces
Info gathered at a bad time - Ex. Survey of fatal dz (only those alive answer)
=SD/sqrt(n)
3. Reliability=
You catch the confounding error. Not a bias
Info gathered at a bad time - Ex. Survey of fatal dz (only those alive answer)
Precision - Consistent and reproducible
Ad/bc
4. Positive vs negative skew
Difference between 2 means - vs - Difference between 3+ means - vs - Difference between things that aren't means
Elderly - vs Destitute
Info gathered at a bad time - Ex. Survey of fatal dz (only those alive answer)
Hump moves left vs right - Mean>median>mode vs Mean<median<mode
5. For the 2x2 - always put ? on top
Best payment method for preventative care
Kg/m^2 - <18.5=underweight - 18.5-25=good - 25-30=overweight - 30-40=obese - 40+=morbidly obese
Precision - Consistent and reproducible
Disease (+ or -)
6. Emancipation of a minor
Ad/bc
Elderly - vs Destitute
Marriage - Self-supporting - Has children - Military - Emergencies - OCPs - STDs - pregnancy - drugs
Nonrandom assignment to study group - vs - Subjects not a good representation of the public
7. Phases of clinical trials
1-Assess toxicity - safety. Healthy volunteers - 2-Assess dosing - SEs - 3-Huge number of people to compare it to the current standard of care - 4-Long term SEs
Best payment method for preventative care
Nonrandom assignment to study group - vs - Subjects not a good representation of the public
Disease (+ or -)
8. Absolute risk reduction equation
ACh increases it - NE reduces REM
Walking - separation anxiety - understand 25% of what he says
Awake=beta - Stage 1=theta - Stage 2=spindles - K complexes - Stage 3=delta (widest with tallest amplitudes) - Stage 4/REM=beta
Risk without tx minus risk with tx
9. Effect modification
Stage 3
Info gathered at a bad time - Ex. Survey of fatal dz (only those alive answer)
Precision - Consistent and reproducible
You catch the confounding error. Not a bias
10. t-test vs ANOVA vs chi
11. Type I vs Type II error (including how you decrease the probability of getting them)
12. Case-control vs cohort study
Difference between 2 means - vs - Difference between 3+ means - vs - Difference between things that aren't means
Take people who have a dz - see what RFs there were vs take people with RFs - see if they develop a dz - Odds ratio vs relative risk - Retrospective vs observational
Marriage - Self-supporting - Has children - Military - Emergencies - OCPs - STDs - pregnancy - drugs
Increased REM - Faster entrance to REM - Repeated awakenings
13. 1st vs 2nd tests in determining a patient having dz
Best payment method for preventative care
If odds ratio or relative risk cross 1 - If two groups overlap
Precision - Consistent and reproducible
1st-Rule out. High sensitivity (SNOUT) - 2nd-Rule in. High specificity (SPIN)
14. Capitation
1st-Rule out. High sensitivity (SNOUT) - 2nd-Rule in. High specificity (SPIN)
Walking - separation anxiety - understand 25% of what he says
Best payment method for preventative care
Reduces precision vs reduces accuracy
15. Depression sleep patterns
Disease (+ or -)
Increased REM - Faster entrance to REM - Repeated awakenings
Kg/m^2 - <18.5=underweight - 18.5-25=good - 25-30=overweight - 30-40=obese - 40+=morbidly obese
[a/(a+b)]/[c/(c+d)]
16. Random vs systematic error
Kg/m^2 - <18.5=underweight - 18.5-25=good - 25-30=overweight - 30-40=obese - 40+=morbidly obese
Those in different groups aren't treated the same
Disease (+ or -)
Reduces precision vs reduces accuracy
17. Procedure bias
18. NTs in REM sleep
Best payment method for preventative care
Info gathered at a bad time - Ex. Survey of fatal dz (only those alive answer)
ACh increases it - NE reduces REM
Need a certain amount of time before the result surfaces
19. Null vs alternative hypothesis
5 steps - hallucinations - delusions - >2 months is abnormal
H0 vs H1 - There is no association vs there is an association
Stage 3
Awake=beta - Stage 1=theta - Stage 2=spindles - K complexes - Stage 3=delta (widest with tallest amplitudes) - Stage 4/REM=beta
20. 12 month milestones
Best payment method for preventative care
Increased REM - Faster entrance to REM - Repeated awakenings
Walking - separation anxiety - understand 25% of what he says
Picking neighbors for controls and such
21. Late-look bias
Those in different groups aren't treated the same
Info gathered at a bad time - Ex. Survey of fatal dz (only those alive answer)
1st-Rule out. High sensitivity (SNOUT) - 2nd-Rule in. High specificity (SPIN)
Risk without tx minus risk with tx
22. MedicarE vs medicaid
Nonrandom assignment to study group - vs - Subjects not a good representation of the public
Elderly - vs Destitute
Best payment method for preventative care
Take people who have a dz - see what RFs there were vs take people with RFs - see if they develop a dz - Odds ratio vs relative risk - Retrospective vs observational
23. Odds ratio equation
Nonrandom assignment to study group - vs - Subjects not a good representation of the public
ACh increases it - NE reduces REM
5 steps - hallucinations - delusions - >2 months is abnormal
Ad/bc
24. Number needed to harm equation
1/attributable risk
Nonrandom assignment to study group - vs - Subjects not a good representation of the public
Alpha vs beta - FP vs FN - There is a difference when there really isn't vs There isn't a difference when there really is
Take people who have a dz - see what RFs there were vs take people with RFs - see if they develop a dz - Odds ratio vs relative risk - Retrospective vs observational
25. Attributable risk equation
1-beta - Probability of finding the difference when there is one (aka not getting Type II error)
Difference between 2 means - vs - Difference between 3+ means - vs - Difference between things that aren't means
If odds ratio or relative risk cross 1 - If two groups overlap
[a/(a+c)] - [c/(c+d)]
26. 3 yr milestones
Feeds self - tricycle - gender identity - toilet trained - sentences
Ad/bc
You catch the confounding error. Not a bias
Those in different groups aren't treated the same
27. Relative risk equation
[a/(a+b)]/[c/(c+d)]
Ad/bc
Marriage - Self-supporting - Has children - Military - Emergencies - OCPs - STDs - pregnancy - drugs
Risk without tx minus risk with tx
28. Pygmalian vs Hawthorne effect
29. Matching
Info gathered at a bad time - Ex. Survey of fatal dz (only those alive answer)
Kg/m^2 - <18.5=underweight - 18.5-25=good - 25-30=overweight - 30-40=obese - 40+=morbidly obese
Picking neighbors for controls and such
Walking - separation anxiety - understand 25% of what he says
30. Confidence interval equation (95%)
Difference between 2 means - vs - Difference between 3+ means - vs - Difference between things that aren't means
Reduces precision vs reduces accuracy
Nonrandom assignment to study group - vs - Subjects not a good representation of the public
Mean +/- 2(SEM)
31. Selection vs sampling bias
Picking neighbors for controls and such
5 steps - hallucinations - delusions - >2 months is abnormal
Take data from everyone to get info like prevalence - risks - etc.
Nonrandom assignment to study group - vs - Subjects not a good representation of the public
32. Grief sx - timeline
5 steps - hallucinations - delusions - >2 months is abnormal
Take data from everyone to get info like prevalence - risks - etc.
Alpha vs beta - FP vs FN - There is a difference when there really isn't vs There isn't a difference when there really is
1-beta - Probability of finding the difference when there is one (aka not getting Type II error)
33. Cross-sectional study
Mean +/- 2(SEM)
Nonrandom assignment to study group - vs - Subjects not a good representation of the public
Take data from everyone to get info like prevalence - risks - etc.
=SD/sqrt(n)
34. BMI equation - levels
Kg/m^2 - <18.5=underweight - 18.5-25=good - 25-30=overweight - 30-40=obese - 40+=morbidly obese
[a/(a+b)]/[c/(c+d)]
=SD/sqrt(n)
[a/(a+c)] - [c/(c+d)]
35. Confidence interval confirms H0
Researches belief in the outcome effects the outcome - vs Subjects realize they're being studied so they change their behavior
Disease (+ or -)
Kg/m^2 - <18.5=underweight - 18.5-25=good - 25-30=overweight - 30-40=obese - 40+=morbidly obese
If odds ratio or relative risk cross 1 - If two groups overlap
36. Waves of sleep
[a/(a+b)]/[c/(c+d)]
Awake=beta - Stage 1=theta - Stage 2=spindles - K complexes - Stage 3=delta (widest with tallest amplitudes) - Stage 4/REM=beta
If odds ratio or relative risk cross 1 - If two groups overlap
Info gathered at a bad time - Ex. Survey of fatal dz (only those alive answer)
37. P value vs power (1-beta) determine them - Power
Mean +/- 2(SEM)
1-beta - Probability of finding the difference when there is one (aka not getting Type II error)
Nonrandom assignment to study group - vs - Subjects not a good representation of the public
Reduces precision vs reduces accuracy
38. Latent period bias
Need a certain amount of time before the result surfaces
Reduces precision vs reduces accuracy
Alpha vs beta - FP vs FN - There is a difference when there really isn't vs There isn't a difference when there really is
Stage 3
39. SEM=
Researches belief in the outcome effects the outcome - vs Subjects realize they're being studied so they change their behavior
=SD/sqrt(n)
1st-Rule out. High sensitivity (SNOUT) - 2nd-Rule in. High specificity (SPIN)
Stage 3
40. Surrogate hierarchy
Take people who have a dz - see what RFs there were vs take people with RFs - see if they develop a dz - Odds ratio vs relative risk - Retrospective vs observational
Info gathered at a bad time - Ex. Survey of fatal dz (only those alive answer)
Spouse>children>parents
Need a certain amount of time before the result surfaces