Stats Tests Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

How to increase validity of results to test for plant abundance/height in area?

A
  • use random numbers to select sampling site (coordinates)
  • same equipment for measurement
  • large sample size and find mean
  • measure control
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What does the t-test do?

A

Tests for difference between the means of 2 sets of values

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

What does chi-squared test do?

A

Compare frequencies

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

What does standard deviation measure?

A

Measure of dispersion

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

How are Spearmans’ ranks results interpreted?

A

Closer to 1 = positive correlation
Closer to -1 = negative correlation
Around 0 = no correlation

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

How are t-test results interpreted?

A

If value is larger than critical value, reject null hypothesis
p = 0.05

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

How are t-test results interpreted?

A

If value is larger than critical value, reject null hypothesis
p = 0.05

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