BIOL132 - L8

HideShow resource information
  • Created by: Katherine
  • Created on: 07-06-16 22:13
What are hypotheses?
Single tentative guesses, good hunches - assumed fr used in devising theory of planning experiments intended to be given a direct experimental possible.
1 of 25
What is the nature of the hypothesis>
It can be tested - verifiable or falsifiable. Not moral or ethical questions. It is neither too specific nor too general. It is a prediction of consequences. It is considered valuable even if proven false.
2 of 25
We have two types of hypotheses. What are these?
H0 (null) and H1 (alternative)
3 of 25
What is the p value>?
The probability value - it represents the probability of two groups being different when in fact they are not. The smaller the p value the stronger the evidence that the observed difference is not by chance
4 of 25
What do p values signify>
The likelihood that, given the null hypothesis is actually true, we see the observed or greater difference between means just by chance under andom sampling.
5 of 25
With what data do we use a paramentric test?
Ratio or interval
6 of 25
With what data do we use a non parametric test>
Ordinal or Nominal
7 of 25
What is the central measure used for parametric tests?
Mean
8 of 25
What is the central measure used for non parametric?
Median
9 of 25
What are the benetifs of parametric tests?
Can draw more conclusion
10 of 25
What are the benefits of non parametric tests?
Simplicity; less affected by outliers
11 of 25
What s the correlation test used for paramentic?
Pearsons
12 of 25
What is the correlation test used for non parametric?
Spearman
13 of 25
When doing a paramentric test, using independent measures and 2 groups what test is used?
Independent measures t test
14 of 25
When doing a non parametric independent measure, 2 group test, what test is used?
Mann whtney
15 of 25
What if there are more than 2 groups for parametric?
One way, independent measure ANOVAA
16 of 25
What about parametric, repeated measures, 2 conditions>
Matched pair t test
17 of 25
What about for non parametric
Wilcoxon
18 of 25
What is a parametric regression line?
We know the function that describes the relationship between the response and explanatory variables (e.g. linear models, generalized linear models)
19 of 25
What is a non parametric regression line?
Used when the relationship between the response and explanatory variables is not known - when the relationship is not linear
20 of 25
When is a t test used?
For difference between sample means. When we are testing whether one mean is bigger or smaller than the other, or for any difference.
21 of 25
If we are are testing whether one treatment mean is bigger or smaller than the other we use a..
one tailed t test
22 of 25
If we are testing for difference either way, we used a...
two tailed t test
23 of 25
If using a one tailed t test, the convention would be
p
24 of 25
When do we use a one tailed test?
When we test one of two outcomes.
25 of 25

Other cards in this set

Card 2

Front

What is the nature of the hypothesis>

Back

It can be tested - verifiable or falsifiable. Not moral or ethical questions. It is neither too specific nor too general. It is a prediction of consequences. It is considered valuable even if proven false.

Card 3

Front

We have two types of hypotheses. What are these?

Back

Preview of the front of card 3

Card 4

Front

What is the p value>?

Back

Preview of the front of card 4

Card 5

Front

What do p values signify>

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all BIOL132 resources »