Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
|
Confounder
|
3rd variable associated with exposure and with the disease
|
|
|
Confounding
|
A difference between the treatment group and the control group other than the treatment
|
|
|
Simpson's Paradox
|
Relationships between percentages in subgroups can be reversed when the subgroups are combined
|
|
|
Treatment group
|
The group in the study who is receiving treatment -> being tested
|
|
|
Control Group
|
Group in the study who is compared to the treatment group to see what the effects on the thing being tested are
|
|
|
Method of Comparison
|
Most basic and important method of determining whether a treatment has an effect
|
|
|
Randomized Controlled Experiment
|
Experiment in which chance is deliberately introduced in assigning subjects to the treatment and control group
|
|
|
Placebo
|
Fake drug
|
|
|
Double-Blind
|
Neither the patient nor the doctor know who is really being tested
|
|
|
Observational Study
|
Investigators do not assign the subjects to treatment or control; it is the subjects who assign themselves to the different groups
|
|
|
Control
|
A subject who did not get the treatment
|
|
|
Controlled Experiment
|
A study where the investigator decides who will be in the treatment group and who will not
|
|
|
In a histogram the area of the blocks represent
__________ |
Percentage of cases in the corresponding class interval
|
|
|
The height of a block on a histogram represents ________
|
Crowding- percentage per horizontal unit
|
|
|
Total area under the histogram is ______
|
99% because their could be an outlier
|
|
|
Variable
|
A characteristic which may change from person to person
|
|
|
Quantitative
|
Has a number that interprets it
|
|
|
Qualitative
|
Descriptive words rather than numbers
|
|
|
To find percentage in a class interval
|
multiply percent by width of the interval
|
|
|
Which interval is the most crowded
|
take middle bar
|
