Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

MRCPCH FOP/TAS > Stats > Flashcards

Stats Flashcards

1
Q

What is the purpose of ANOVA ?

A

demonstrate statistically significant differences between the means of several groups (normal distribution required)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Which type of statistical plots are typically used in meta-analyses?

A

Forest plots

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the purpose of a phase I clinical trial?

A

Study pharmacokinetics and pharmacodynamics and side-effects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the purpose of a phase II clinical trial?

A

Assess efficacy and dosage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the purpose of a phase III clinical trial?

A

Assess effectiveness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the purpose of a phase IV clinical trial?

A

Post marketing surveillance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How is the standard error of the mean (SEM) calculated?

A

SEM = SD / square root (n)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is meant by a type I error?

A

False positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is meant by a type II error?

A

False negative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is meant by positively skewed distribution?

A

mean > median > mode

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is meant by negatively skewed distribution?

A

mean < median < mode

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What % of values lie within 1 SE of the mean?

A

68.3%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What % of values lie within 2 SE of the mean?

A

95.4%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What % of values lie within 3 SE of the mean?

A

99.7%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Box and whisker plots are used to display…

A

Median, IQ ranges etc

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

A funnel plot is used to show…

A

existence of publication bias in meta-analyses

17
Q

What is meant by nominal data?

A

Observed values can be put into set categories which have no particular order or hierarchy

18
Q

What is meant by ordinal data?

A

Observed values can be put into set categories which themselves can be ordered

19
Q

What is meant by discrete data?

A

Observed values are confined to a certain values

20
Q

What is meant by continuous data?

A

Data can take any value with certain range

21
Q

How is variance calculated?

A

square of standard deviation

22
Q

What is the formula for negative likelihood ratio?

A

LR = (1-Sensitivity)/Specificity

23
Q

What does a kappa score measure?

A

Agreement between two variables

24
Q

What kappa score indicates complete agreement?

25
Q

What is meant by the specificity of a test?

A

% of those without the disease who test negative

26
Q

What is meant by sensitivity?

A

Proportion with disease who have positive test

27
Q

What is meant by PPV?

A

Chance of having disease if +ve test

28
Q

What is meant by NPV?

A

Chance does not have disease if -ve

29
Q

Cross-sectional studies are useful for assessing…

A

Prevalence

MRCPCH FOP/TAS (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions