sensitivity, specificity 1/19

Question 1

what term?
probability test will show + for those + with disease
correctly identifying true positives.

Answer 1

sensitivity

Question 2

what term?
probability test will show - for those - without disease
correctly identifying true negatives

Answer 2

specificity

Question 3

what term?

highly ___, - result will rule out disease

Answer 3

Sensitivity

Question 4

what term?

highly ___, + result will rule in disease

Answer 4

specificity

Question 5

sn/sp?

MRI correctly identifies 95% of patients as + for + anterior cruciate ligament tear.

Answer 5

sensitivity

Question 6

term?

result is likely NOT due to chance.

Answer 6

Statistically significant

Question 7

what is type 1 error?

how to limit type 1 error?

Answer 7

• false positive
• incorrectly rejects a true null hypothesis.
• report that your findings are significant when in fact they have occurred by chance.
• limit with highly specific test

Question 8

what is type 2 error?

how to limit type 2 error?

Answer 8

• false negative
• fails to reject a null hypothesis which is really false.
• researcher concludes there is not a significant effect, when actually there really is.
• limit with highly sensitive test

Question 9

higher specificity
fewer false ____
what kind of errors?

Answer 9

fewer false positive

Type I errors

Question 10

higher sensitivity
fewer false ____
what kind of errors?

Answer 10

fewer false negatives

Type II errors