Tuesday

March 3, 2015

March 3, 2015

Posted by **Caitlin** on Wednesday, April 13, 2011 at 2:11pm.

Vertical Group

13

12

11

11

9

8

8

Horizontal Group

13

15

12

15

18

10

14

- Statistical Psychology -
**PsyDAG**, Thursday, April 14, 2011 at 12:53pmFind the mean first = sum of scores/number of scores

Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance.

Standard deviation = square root of variance

Z = (mean1 - mean2)/standard error (SE) of difference between means

SEdiff = √(SEmean1^2 + SEmean2^2)

SEm = SD/√(n-1)

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score.

**Answer this Question**

**Related Questions**

Psychology - According to your text, which of the following is NOT a cause of ...

PSYCHOLOGY HELP PLEASE!! - Psychologist Claude Steele is widely noted for his ...

Business - Several outside groups regularly monitor the activities of Metro ...

algebra - a farmer is taking her eggs to market in her cart, but she hits a ...

4th grade math - I don't know how to go about solving this problem: There were ...

chemistry - Which of the following os a true statement about the periodic table...

government - common cause and the league of women voters are examples of? a. ...

Psychology - Indicate the independent variable and dependent variable: A ...

Sociology - What functions do status, role, primary groups, and secondary groups...

sociology - How a person respond to this type of statement? I am not sure how I ...