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21 Cards in this Set
- Front
- Back
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what is nominal data:
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Categorical (Men-Women), (Family Practice, Internal Medicine, Pediatrics), (A,B,AB,O)
-data that you can count but not order or measure |
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what is ordinal data:
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implied order between categories: (Stable Serious Critical) (Stage I II III cancer) (very satisfied to very dissatisfied)
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what is interval data:
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infinite values, can subtract values: (Continuous) (Discrete)
height, weight, blood pressure |
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match the type of average with the correct type of data:
... data – Mean ... data – Median ... data - Frequency |
Interval
Ordinal Nominal |
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Ho represents the ... hypothesis
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null
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what does this describe:
Chance – Really no difference between the groups |
The NULL Hypothesis
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what does the following describe:
Something is Going on here (The Pill Works) |
The Alternative Hypothesis
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H1 represents the ... Hypothesis
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Alternative
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what does the following describe:
Mathematically equivalent to 0 or 1 depending on the level of measurement |
NULL statement
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what are the 2 different types of decision methods we discussed in class:
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decision point method
confidence interval |
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This decision point will be measured by the ... This translates into the probability of what we see is due to chance alone
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p-value
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If the p-value is large, it favors ...
If the p-value is small, it favors ... |
Ho
H1 |
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for most published articles p < ...
for drug trials p < ... or p <... |
.05
.01 .001 |
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The probability of rejecting the null hypothesis when you should not is what type of error
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type I
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what is the marker for the null hypothesis when the results are in a ratio form (relative risk or odds ratio) ...
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1 represents Ho
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the P-value that researchers decide to accept before they will be confident enough to release a finding. This is their predetermined acceptance level. The alpha level is not calculated, it is chosen by the researcher(s)
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the alpha level
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what is the marker for the null hypothesis when the results are in an interval form ...
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0 represents Ho
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If the probability of the results of the statistical test are greater than α, (p > .05) then the results (are/are not) statistically significant. we must (accept/reject) the null hypothesis
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are not
accept |
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If the probability or the results of the statistical test are less than α (p < .05) then the results (are/are not) statistically significant. we must (accept/reject) the null hypothesis
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are
reject |
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p > α Then p is large
Accept/Reject Ho |
accept
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p < α Then p is small
Accept/Reject Ho |
reject
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