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### Re: Disease Detectives B/C

Posted: March 15th, 2018, 6:15 pm
List the formula and what it expresses:
Sensitivity
Specificity
Positive Predictive Value
Negative Predictive Value

### Re: Disease Detectives B/C

Posted: March 15th, 2018, 6:23 pm
List the formula and what it expresses:
Sensitivity
Specificity
Positive Predictive Value
Negative Predictive Value
Sensitivity = TP / (TP + FN)
It measures a test's ability to correctly identify those who have the disease.
Specificity = TN / (TN + FP)
It measures a test's ability to correctly identify those without the disease.
Positive Predictive Value = TP / (TP + FP)
It measures a test's accuracy in diagnosing those with the disease. It is the chance that a person with a positive result actually has the disease.
Negative Predictive Value = TN / (TN + FN)
It measures a test's accuracy in diagnosing those without the disease. It is the chance that a person with a negative result is truly free of the disease.

### Re: Disease Detectives B/C

Posted: March 15th, 2018, 7:27 pm
List the formula and what it expresses:
Sensitivity
Specificity
Positive Predictive Value
Negative Predictive Value
Sensitivity = TP / (TP + FN)
It measures a test's ability to correctly identify those who have the disease.
Specificity = TN / (TN + FP)
It measures a test's ability to correctly identify those without the disease.
Positive Predictive Value = TP / (TP + FP)
It measures a test's accuracy in diagnosing those with the disease. It is the chance that a person with a positive result actually has the disease.
Negative Predictive Value = TN / (TN + FN)
It measures a test's accuracy in diagnosing those without the disease. It is the chance that a person with a negative result is truly free of the disease.

### Re: Disease Detectives B/C

Posted: March 16th, 2018, 7:57 am
Explain what the four inch law dictates and why it came into being. Include the specific illness that the law aimed to prevent/reduce.

### Re: Disease Detectives B/C

Posted: March 16th, 2018, 8:05 am
Explain what the four inch law dictates and why it came into being. Include the specific illness that the law aimed to prevent/reduce.
Turtles with shells less than four inches were banned from sale. It was made to prevent Salmonella spread.

### Re: Disease Detectives B/C

Posted: March 16th, 2018, 8:47 am
Explain what the four inch law dictates and why it came into being. Include the specific illness that the law aimed to prevent/reduce.
Turtles with shells less than four inches were banned from sale. It was made to prevent Salmonella spread.

### Re: Disease Detectives B/C

Posted: March 18th, 2018, 6:11 am
Name and describe the role of each of the following agencies: CDC, FDA, FSIS

### Re: Disease Detectives B/C

Posted: March 18th, 2018, 7:48 am
Name and describe the role of each of the following agencies: CDC, FDA, FSIS
```CDC-Center of Disease Control and Prevention; controls and prevents diesase
FSIS-Food safety and inspection service; inspects and makes sure food is safe.

They all do basically what their names imply.```

### Re: Disease Detectives B/C

Posted: March 18th, 2018, 8:58 am
Name and describe the role of each of the following agencies: CDC, FDA, FSIS
```CDC-Center of Disease Control and Prevention; controls and prevents diesase
FSIS-Food safety and inspection service; inspects and makes sure food is safe.

They all do basically what their names imply.```
Well, I would be more specific in the role of the FDA. Their role is to protect consumers by regulation of foods and drugs which could be deemed harmful. Additionally, FSIS is specifically concerned with meat, poultry, and eggs, as it is part of the Dept. of Agriculture. Your turn.

### Re: Disease Detectives B/C

Posted: March 28th, 2018, 8:32 am
I'm going to start this up again.

1. What is the ANOVA test?
2. In what situation would you use a t-test?
3. What causes Mad Cow Disease?