Disease Detectives B/C

Test your knowledge of various Science Olympiad events.
UTF-8 U+6211 U+662F
Exalted Member
Exalted Member
Posts: 1453
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » April 26th, 2018, 12:03 pm

IcsTam wrote:Given a 2x2 table, how would you calculate the standard deviation? (qualitative explanation, although if using numbers as an example would help you, then feel free to)

Standard deviation of what? A 2x2 table measures categorical data.

(If you mean the sampling distribution of proportions, you can calculate the std dev. of the sampling distribution with or if a proportion is not given.)

IcsTam
Member
Member
Posts: 58
Joined: March 1st, 2017, 5:09 pm
Division: C
State: PA

Re: Disease Detectives B/C

Postby IcsTam » April 26th, 2018, 1:29 pm

UTF-8 U+6211 U+662F wrote:
IcsTam wrote:Given a 2x2 table, how would you calculate the standard deviation? (qualitative explanation, although if using numbers as an example would help you, then feel free to)

Standard deviation of what? A 2x2 table measures categorical data.

(If you mean the sampling distribution of proportions, you can calculate the std dev. of the sampling distribution with or if a proportion is not given.)


Oh shoot, I messed up the question, my bad. That's pretty much what I meant. Go for it
Penncrest ‘18
UPenn ‘22
PM me about UPenn, Physics, or anything college or SciOly related!

UTF-8 U+6211 U+662F
Exalted Member
Exalted Member
Posts: 1453
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » April 26th, 2018, 1:41 pm

What are the different types of carriers?

User avatar
Tailsfan101
Exalted Member
Exalted Member
Posts: 613
Joined: April 14th, 2017, 4:33 pm
Division: C
State: ID
Location: Philippians 3:20a "For our citizenship is in heaven"
Contact:

Re: Disease Detectives B/C

Postby Tailsfan101 » April 26th, 2018, 4:05 pm

UTF-8 U+6211 U+662F wrote:What are the different types of carriers?

I think
Active Carrier - A person who can transmit a disease to others but shows no signs or symptoms
Convalescent Carrier - A person who recently recovered from a disease but can still transmit the disease to others
There may be others but that's all I know.
2019 Treasure Valley Homeschool Wiki
2017
State/Nats
DD: 1/16
DP: -/50
RS: 2/51
FF: 4/59

2018
State/Nats
CB: 1/35
RS: 1/44
DD: 2/37
MM: 3/46

2019
Mini-Inv./DISCO/State/Nats
RS: 1/2/1/-
DD: -/3/2/-
HD: 2/4/4/-
CB: 3/6/1/-
ELG: -/6/-/-
GeoMaps: -/-/-/
WIDI: -/-/-/

Assassinator for game #118

UTF-8 U+6211 U+662F
Exalted Member
Exalted Member
Posts: 1453
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » April 26th, 2018, 5:03 pm

Tailsfan101 wrote:
UTF-8 U+6211 U+662F wrote:What are the different types of carriers?

I think
Active Carrier - A person who can transmit a disease to others but shows no signs or symptoms
Convalescent Carrier - A person who recently recovered from a disease but can still transmit the disease to others
There may be others but that's all I know.

Sure - your turn

User avatar
Tailsfan101
Exalted Member
Exalted Member
Posts: 613
Joined: April 14th, 2017, 4:33 pm
Division: C
State: ID
Location: Philippians 3:20a "For our citizenship is in heaven"
Contact:

Re: Disease Detectives B/C

Postby Tailsfan101 » April 26th, 2018, 5:40 pm

Question 1
Match the following descriptions of Hill's Criteria to their names:
I. The condition can be altered, either prevented or accelerated
II. Observation of association must be repeatable in different populations at different times
III. Cause/exposure must precede the effect/outcome
IV. The association should be compatible with existing theory and knowledge, including knowledge of past cases and epidemiological studies
V. A single cause produces a specific effect
VI. Relationship is clear and risk estimate is high
VII. The association agrees with currently accepted understanding of
VIII. Consideration of multiple hypotheses before making a conclusion about whether an association is causal or not
IX. An increasing amount of exposure increases the risk

1. Alternative Explanations
2. Coherence
3. Temporality
4. Biological Plausibility
5. Specificity
6. Strength of Association
7. Experimental Evidence
8. Dose-Response Relationship
9. Consistency

Question 2
List in order the ten steps in an epidemiological investigation.

Easy questions.
2019 Treasure Valley Homeschool Wiki
2017
State/Nats
DD: 1/16
DP: -/50
RS: 2/51
FF: 4/59

2018
State/Nats
CB: 1/35
RS: 1/44
DD: 2/37
MM: 3/46

2019
Mini-Inv./DISCO/State/Nats
RS: 1/2/1/-
DD: -/3/2/-
HD: 2/4/4/-
CB: 3/6/1/-
ELG: -/6/-/-
GeoMaps: -/-/-/
WIDI: -/-/-/

Assassinator for game #118

Killboe
Member
Member
Posts: 191
Joined: January 29th, 2018, 7:04 am
Division: B
State: FL

Re: Disease Detectives B/C

Postby Killboe » April 27th, 2018, 7:09 am

Tailsfan101 wrote:
Question 1
Match the following descriptions of Hill's Criteria to their names:
I. The condition can be altered, either prevented or accelerated
II. Observation of association must be repeatable in different populations at different times
III. Cause/exposure must precede the effect/outcome
IV. The association should be compatible with existing theory and knowledge, including knowledge of past cases and epidemiological studies
V. A single cause produces a specific effect
VI. Relationship is clear and risk estimate is high
VII. The association agrees with currently accepted understanding of
VIII. Consideration of multiple hypotheses before making a conclusion about whether an association is causal or not
IX. An increasing amount of exposure increases the risk

1. Alternative Explanations
2. Coherence
3. Temporality
4. Biological Plausibility
5. Specificity
6. Strength of Association
7. Experimental Evidence
8. Dose-Response Relationship
9. Consistency

Question 2
List in order the ten steps in an epidemiological investigation.

Easy questions.




I'm going to do Question 1 and 2.
Answer 1
1. VIII
2. IV
3. III
4. VII
5. V
6. VI
7. I
8. IX
9. II
Also, for Biological Plausibility, you forgot to add, "biological and pathological processes." btw I knew that because I have the exact definitions in my cheat sheet i swear i didnt look it up :oops:

Answer 2
1.Prepare team and resources
2. Establish existence of outbreak
3. Verify the diagnosis
4. Construct case defintion
5. Find cases systemically and develop line listing
6. Performing descriptive epidemiology/perform additional studies as necessary
7. Develop hypotheses
8. Implement control measures
9. Communicate findings
10. Maintain surveillance
River City Science Academy 2019
Proud competitor of B-01 MS


2019 Events

Disease Detectives
Solar System
Thermodynamics

My Wiki

User avatar
Tailsfan101
Exalted Member
Exalted Member
Posts: 613
Joined: April 14th, 2017, 4:33 pm
Division: C
State: ID
Location: Philippians 3:20a "For our citizenship is in heaven"
Contact:

Re: Disease Detectives B/C

Postby Tailsfan101 » April 27th, 2018, 8:04 am

Killboe wrote:
Tailsfan101 wrote:
Question 1
Match the following descriptions of Hill's Criteria to their names:
I. The condition can be altered, either prevented or accelerated
II. Observation of association must be repeatable in different populations at different times
III. Cause/exposure must precede the effect/outcome
IV. The association should be compatible with existing theory and knowledge, including knowledge of past cases and epidemiological studies
V. A single cause produces a specific effect
VI. Relationship is clear and risk estimate is high
VII. The association agrees with currently accepted understanding of
VIII. Consideration of multiple hypotheses before making a conclusion about whether an association is causal or not
IX. An increasing amount of exposure increases the risk

1. Alternative Explanations
2. Coherence
3. Temporality
4. Biological Plausibility
5. Specificity
6. Strength of Association
7. Experimental Evidence
8. Dose-Response Relationship
9. Consistency

Question 2
List in order the ten steps in an epidemiological investigation.

Easy questions.




I'm going to do Question 1 and 2.
Answer 1
1. VIII
2. IV
3. III
4. VII
5. V
6. VI
7. I
8. IX
9. II
Also, for Biological Plausibility, you forgot to add, "biological and pathological processes." btw I knew that because I have the exact definitions in my cheat sheet i swear i didnt look it up :oops:

Answer 2
1.Prepare team and resources
2. Establish existence of outbreak
3. Verify the diagnosis
4. Construct case defintion
5. Find cases systemically and develop line listing
6. Performing descriptive epidemiology/perform additional studies as necessary
7. Develop hypotheses
8. Implement control measures
9. Communicate findings
10. Maintain surveillance

Answer 1
All are correct. Somehow I left that part off :oops:

Answer 2
Here's what I have on my cheat sheet:
1. Prepare for field work
2. Establish the existence of an outbreak
3. Verify diagnosis
4. Define and identify cases
5. Describe and orient the data in terms of person, place, and time
6. Develop hypotheses
7. Evaluate hypotheses
8. Refine hypotheses
9. Control and prevention measures
10. Communicate findings
Pretty similar, but I think you added a few unnecessary steps.

Your turn.
2019 Treasure Valley Homeschool Wiki
2017
State/Nats
DD: 1/16
DP: -/50
RS: 2/51
FF: 4/59

2018
State/Nats
CB: 1/35
RS: 1/44
DD: 2/37
MM: 3/46

2019
Mini-Inv./DISCO/State/Nats
RS: 1/2/1/-
DD: -/3/2/-
HD: 2/4/4/-
CB: 3/6/1/-
ELG: -/6/-/-
GeoMaps: -/-/-/
WIDI: -/-/-/

Assassinator for game #118

UTF-8 U+6211 U+662F
Exalted Member
Exalted Member
Posts: 1453
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » April 29th, 2018, 11:13 am

Tailsfan101 wrote:
Killboe wrote:
Tailsfan101 wrote:
Question 2
List in order the ten steps in an epidemiological investigation.

Answer 2
1.Prepare team and resources
2. Establish existence of outbreak
3. Verify the diagnosis
4. Construct case defintion
5. Find cases systemically and develop line listing
6. Performing descriptive epidemiology/perform additional studies as necessary
7. Develop hypotheses
8. Implement control measures
9. Communicate findings
10. Maintain surveillance

Answer 2
Here's what I have on my cheat sheet:
1. Prepare for field work
2. Establish the existence of an outbreak
3. Verify diagnosis
4. Define and identify cases
5. Describe and orient the data in terms of person, place, and time
6. Develop hypotheses
7. Evaluate hypotheses
8. Refine hypotheses
9. Control and prevention measures
10. Communicate findings
Pretty similar, but I think you added a few unnecessary steps.

Your turn.

The problem with asking this question is that both answers are right (and that all the "steps" could easily be broken down into multiple steps).

Of course, Killboe's answer leaves out actually testing the hypotheses :P

Killboe
Member
Member
Posts: 191
Joined: January 29th, 2018, 7:04 am
Division: B
State: FL

Re: Disease Detectives B/C

Postby Killboe » April 30th, 2018, 7:29 am

Question 1
What is BSE caused by :P



Question 2
List reasons why public health officials investigate outbreaks.
River City Science Academy 2019
Proud competitor of B-01 MS


2019 Events

Disease Detectives
Solar System
Thermodynamics

My Wiki

UTF-8 U+6211 U+662F
Exalted Member
Exalted Member
Posts: 1453
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » April 30th, 2018, 1:24 pm

Killboe wrote:
Question 1
What is BSE caused by :P



Question 2
List reasons why public health officials investigate outbreaks.

Answer
1) A prion
2) Control and prevention, research opportunities, training, public/political/legal concerns, and program considerations

Killboe
Member
Member
Posts: 191
Joined: January 29th, 2018, 7:04 am
Division: B
State: FL

Re: Disease Detectives B/C

Postby Killboe » May 4th, 2018, 6:49 am

UTF-8 U+6211 U+662F wrote:
Killboe wrote:
Question 1
What is BSE caused by :P



Question 2
List reasons why public health officials investigate outbreaks.

Answer
1) A prion
2) Control and prevention, research opportunities, training, public/political/legal concerns, and program considerations


Yup, your turn.
River City Science Academy 2019
Proud competitor of B-01 MS


2019 Events

Disease Detectives
Solar System
Thermodynamics

My Wiki

UTF-8 U+6211 U+662F
Exalted Member
Exalted Member
Posts: 1453
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » May 4th, 2018, 12:42 pm

Why might you stratify a table of case-related mortalities by age?

Froggie
Member
Member
Posts: 296
Joined: June 19th, 2017, 2:12 pm
Division: B
State: PA
Location: See above.

Re: Disease Detectives B/C

Postby Froggie » May 6th, 2018, 9:01 am

UTF-8 U+6211 U+662F wrote:Why might you stratify a table of case-related mortalities by age?

So that you can see whether the case affects older/younger/middle aged people, and that data can help you prevent further deaths.
"A lot of people have quotes in their signature. Maybe I should have a quote in my signature. "
- Froggie

UTF-8 U+6211 U+662F
Exalted Member
Exalted Member
Posts: 1453
Joined: January 18th, 2015, 7:42 am
Division: C
State: PA

Re: Disease Detectives B/C

Postby UTF-8 U+6211 U+662F » May 6th, 2018, 12:52 pm

Froggie wrote:
UTF-8 U+6211 U+662F wrote:Why might you stratify a table of case-related mortalities by age?

So that you can see whether the case affects older/younger/middle aged people, and that data can help you prevent further deaths.

Ehh, a better reason is that
Age is a common confounding variable.


Your turn.


Return to “2018 Question Marathons”

Who is online

Users browsing this forum: No registered users and 1 guest

cron