Brainscape's Knowledge GenomeTM

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


See full index

Boards Review - Non Systems > Research > Flashcards

Research Flashcards

1
Q

Nominal

A

Name

Mutually exclusive ie type of arthritis, blood type

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

Ordinal

A

Ranking

Ie MMT, assistance level, pain, joint laxity

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

Interval

A

Intervals are equal
NO true zero
Degrees, functional status test

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

Ratio

A

Intervals equal
TRUE zero
ROM, distance, height, etc

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

Alternate forms reliability

A

Consistency of measurements obtained from a different form of test.

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

Internal consistency

A

Items or elements reflect one basic phenomenon or dimension

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

Intrarater

A

Same person over time

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

Interrater

A

agreement of measures made by More than one person

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

Test-rest reliability

A

Consistency of repeat measures

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

Face validity

A

Does it test what it’s supposed to

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

Content validity

A

Does it reflect the content domain of interest and not extraneous elements?

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

Construct validity

A

Degree to which theoretical construct is measured

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

Criterion-related validity

A

Validity when compared to “Gold standard”

Includes: concurrent, predictive and prescriptive validities

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

Concurrent validity

A

Type of criterion-related

Comparing measurement to a gold standard at the same time

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

Predictive validity

A

Type of criterion related

Measurement valid because it is predictive of future behavior

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

Prescriptive validity

A

Type of criterion related

Suggests form of tx a person should receive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Sampling error

A

Chance between statistic calculated from sample and true parameter in population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Probability sampling

A

Random selection. Each members has same chance of getting picked
Includes: simple random, systemic, stratified random, cluster

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Simple random sampling

A

Type of probability sampling

Subjects have equal chance of being selected

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Systematic sampling

A

Type of probability sampling

Taking every nth subject

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Stratified random sampling

A

Type of probability sampling

Population decided into strata then simple random sample from each

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Cluster sampling

A

Type of probability sampling

Decided into clusters (geographic) and random sample from each

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Non-probability sampling

A

No random selection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Convenience sampling

A

Type of non-probability

Subjects who are readily available

25
Q

Purposive sampling

A

Type of non-probability

Deliberately selected based on predefined criteria

26
Q

Quota sampling

A

Type of non probability

Similar to stratified random, but subjects from subgroups are not random

27
Q

Snowball sampling

A

Type of non probability

Subjects ID by asking existing subjects to ID names of other potential participants

28
Q

Single blind

A

Subjects blinded

29
Q

Double blind

A

Subjects and researches

30
Q

Triple blind

A

Subjects, researchers, fatal analyzers

31
Q

Active control

A

Known effective form of tx as control

32
Q

Placebo control

A

Inactive substance that looks same as tx

Unethical to use if effective treatment is available as active control

33
Q

P value

A

Probability that a particular statistic result could have happened by chance

34
Q

P is smaller than alpha

A

Reject the null hypothesis

35
Q

P is larger than alpha

A

The null hypothesis is not rejected

36
Q

Alpha level

A

Significance level

Probability of rejecting the null hypothesis when it is true, or chance of Type 1 error

37
Q

Type 1 error

A

Alpha error
Wrongly rejecting null hypothesis
Concluding there is a difference when there is not (false positive)

38
Q

If alpha set at 0.01

A

There is a 1% chance of a type 1 error occurring

39
Q

Type II error

A

Beta error
Wrongly deciding not to reject the null
Concluding there is no difference or relationship when there is (false negative)

40
Q

Normal distribution

A

Bell shaped

Mean, median, mode are the same

41
Q

Normal distribution- % of all values within 1 SD Above and below mean

A

68%

42
Q

Normal distribution- % of all values within 2 SDs above and below mean

A

95%

43
Q

Normal distribution- % of all values within 3 SDs above and below mean

A

99%

44
Q

Mean and medial to left of mode

A

Negatively skewed

Left tail is elongated

45
Q

Mean and median to right of mode

A

Positively skewed

Right tail is elongated

46
Q

Coefficient of variation

A

Ratio of SD of a distribution to mean

CV = (s/ mean)*100

47
Q

Standard deviation

A

Square root of variance

48
Q

Bar graph

A

Magnitude or frequency of categories

Length of bar is proportional to magnitude or frequency

49
Q

Box and whisker plot

A

Illustrates the distribution of values within a group through 5 numbers with outliers shown as circles

50
Q

Numbers in box and whisker plot

A 
Minimum score
Lower quartile (q1)
Median (q2)
Upper quartile (q3)
And maximum score
51
Q

Histogram

A

Displays distribution by plotting frequency (y axis) for each interval represented (x axis).

52
Q

Line graphs

A

Relationship between variables with dependent on y axis and independent on x axis
Idea for showing trends in data over time

53
Q

Scatter plot

A

Relationship between two quantitative variables

Line of best fit generated to show relationship

54
Q

Sensitivity

A

Percentage of people who test positive for disease amount people who have the disease
-airport metal detectors

55
Q

Specificity

A

Percentage of people who test negative for a specific disease among group of people who do not have it
-airport pat down

56
Q

Incidence

A

Number of new cases in the population at risk during specified Tim interval

57
Q

Prevalence

A

Number of existing cases at a point in time including new and pre-existing

58
Q

Relative risk

A

Measure of risk of certain event happening I one group compared to risk of same happening in another
RR 1.0 means that is is equally probable in both groups.
Greater than one implies increase, less than one implies decrease risk

59
Q

Odds ratio

A

Measure of odds of event happening in one group compared to odds of same event happening on other group (usually case control for exposure)
1.0 means exposure probably does not increase risk
>1 means may increase risk
<1 means may reduce risk

Boards Review - Non Systems (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions