Term
| Understanding ______ makes one's access to statistical info rise to 67%? |
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Definition
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Term
| Which establishes a possible cause and effect relationship: Descriptive or Inferential Statistics? |
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Definition
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| What is "most frequently occurring score" in descriptive statistics? |
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Definition
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Term
| What is "a sum of scores divided by the number of scores"? |
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Definition
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Term
| What is a "score physically in the middle of all the scores" in statistics? |
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Definition
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Term
What is the most preferred measure of central tendency?
-Mean
-Mode
-Median |
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Definition
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Term
If scores are similar in a particular test, showing "low variablility", they are called
-HETEROGENEOUS, or
-HOMOGENEOUS? |
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Definition
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Term
What is the "simplest measure of variability"?
Variance
Mean
Mode
Median
Range
Standard Deviation |
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Definition
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Term
What is the "square root of the variance?"
Variance
Mean
Mode
Standard Deviation
Median
Range |
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Definition
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Term
| If a mean is presented in the data, what other very significant thing should be in the data as well? |
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Definition
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Term
| ____ describes the relationship between TWO variables. |
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Definition
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Term
| What is the RANGE for CORRELATIONS? |
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Definition
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Term
| Having a pill that is too expensive; but gives an extra day of life is significant how? |
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Definition
Medically Significant, b/c it gives life;
but Statistically Insignificant b/c no one can afford it. |
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Term
| Having a pill that is affordable and gives an extra day of life is significant how? |
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Definition
| Medically AND statistically significant |
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Term
| Having a pill that is extremely affordable but not more effective than the present drug on the market for the condition, is what? |
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Definition
| Statistically but not Medically Significant |
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Term
| Having a pill that works DRAMATICALLY on only a few pts is significant how? |
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Definition
| Medically but not STATISTICALLY |
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Term
| What number is needed to determine whether or not results are significant? |
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Definition
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Term
| What are the customary CRITICAL VALUES? There are two: |
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Definition
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Term
| Which people commonly use the critical value of p< 0.01? |
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Definition
| Psychologists...they are psycho. |
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Term
| If I want to measure an extremely small difference in a study, do I need more or less pts? |
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Definition
MORE,
the more pts, the greater accuracy can be measured. |
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Term
What is the most common form of evaluating results, although not the best; and
"Tells you the odds of your result being caused by chance"? |
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Definition
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Term
| Who developed the T Test? |
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Definition
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Term
| All three of the t-tests are based upon the ____ of two groups. |
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Definition
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Term
| Which t-test compares the sample group to the MEAN VALUE of the POPULATION? |
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Definition
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Term
| Which test is the least used of the t tests? |
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Definition
| T Test 1, b/c the mean of the population is not often known. |
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Term
| In which T Test is the fact that "the null hypothesis equallying that the difference between pre and post scores equalling zero(meaning that the treatment was not effective)" a central charecteristic? |
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Definition
| In T Test #2 "Correlated Groups" |
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Term
| In which kind of T Test do the subjects serve as their own controls? |
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Definition
| T Test #2 Correlated Groups |
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Term
| Which t test is the "most commonly used"? |
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Definition
| T Test 3: Independant Test |
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Term
| Which T test group is used if you have TWO groups/samples out of an entire population? |
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Definition
| T Test 3: Independant Test |
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Term
| What test is used if you have 2+ groups (not a T Test)? |
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Definition
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Term
| What test is used to study "nuisance variables"? |
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Definition
| ANCOVA; or Analysis of Covariance |
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Term
The ANCOVA test measures nuisance variables on what?
dependent variable(outcome measures), or
independant variable(e.g. treatment)? |
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Definition
| It measures DEPENDANT variables. |
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Term
| What are "data measures in a research study"? |
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Definition
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Term
| What are "phenomenon of interest in a aresearch study(treatment)"? |
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Definition
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Term
| What is "Consistency of observations of the same observer at different times"? |
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Definition
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Term
| What is "Format for questionnaires in which subjeccts indicate degree of agreement or disagreement"? |
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Definition
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Term
| What are "changes in the level of the independent variable"? |
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Definition
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Term
| What is testing, waiting, then re-testing...what does that measure? |
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Definition
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Term
Type I or II error:
Rejecting the Ho when she's been true to you? |
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Definition
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Term
Type I or II error:
Accepting the Ho when she's gone behind your back and you've failed to check her text message history. Fool. |
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Definition
| That's type II. You made II errors: 1.) Picked a cheater in the first place, and 2.) You failed to keep your brain on. Check that blackberry yo! |
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