statistics in psychology

11. Make up a scatter diagram with 10 dots for each of the following situations:
(a) perfect positive linear correlation, (b) large but not perfect positive linear
correlation, (c) small positive linear correlation, (d) large but not perfect negative
linear correlation, (e) no correlation, (f) clear curvilinear correlation.
For problems 12 to 14, do the following: (a) Make a scatter diagram of the
scores; (b) describe in words the general pattern of correlation, if any; (c) figure
the correlation coefficient; (d) figure whether the correlation is statistically significant
(use the .05 significance level, two-tailed); (e) explain the logic of what
you have done, writing as if you are speaking to someone who has never heard
of correlation (but who does understand the mean, deviation scores, and hypothesis
testing); and (f) give three logically possible directions of causality, indicating
for each direction whether it is a reasonable explanation for the correlation
in light of the variables involved (and why).


12. Four research participants take a test of manual dexterity (high scores mean better dexterity)
and an anxiety test (high scores mean more anxiety). The scores are as follows.
(c)
(e)
(d)
(f)
Person Dexterity Anxiety
1 1 10
2 1 8
3 2 4
4 4 -2

  1. 0
  2. 0
  3. 28
asked by desiree
  1. You have posted your entire assignment, which no one here will do for you.

    If you have a question, please ask it. If not, work on completing the assignment and then post what YOU THINK if you'd like someone here to critique your thinking and writing.

    1. 0
    2. 0
    posted by Writeacher

Respond to this Question

First Name

Your Response

Similar Questions

  1. Statistics

    Make a scatter diagram with 10 dots showing a perfect positive linear correlation

    asked by Anonymous on July 15, 2009
  2. statistics

    Please Help! My book and instructor are no help. Please help me understand why I need to make a scatter diagram, when dealing with bivariate data, and how to find SS(x), SS(y), SS(xy), and r. I have all the formulas, but don't

    asked by Rebecca on August 31, 2005
  3. math

    what is an example of a positive corralation using a scatter graph? please help!!!!!!!!!!!!!!!!!!!! I don't know how to place that image in this reply. However, I will try to describe it. If both the abscissa (horizontal or X

    asked by lauren on November 29, 2006
  4. Chemistry

    Can you tell me if i did these right?? Lewis Dot Structure A. BrF = 5 dots around Br-F with 5 dots around it B. PBr3 = ? I don't know how to do because of the 3 C. NOF= 3 dots around N 2 dots around O and 5 dots around F N-O-F D.

    asked by Lauren on December 3, 2007
  5. Math

    I am confused with this question. A breakfast chef uses three different amounts of milk when making pancakes, depending on the number of pancakes ordered. The dot plot shows Customer's orders for pancakes one morning. How much

    asked by Lauren on September 8, 2017
  6. Geometry

    when you have a graph with just dots and the dots make a figure. Then the dots on the outside are the posts and the inside dots are trees. what equation can i use to get the area of the figure using only posts and trees?

    asked by Cheyenne on October 18, 2010
  7. making dot arrays

    to make a 14-dot array that has exactly two rows, is this going to have a total of 14 dots or will it be 14 dots per row

    asked by annabelle on September 2, 2008
  8. statistics

    3. The following data shows expenditures (in millions of dollars) and case (sales in millions) for seven major soft drink brands. Show a scatter diagram of the data and describe in words what it tells you. Calculate the

    asked by Karen on March 25, 2009
  9. Math

    Teo rectangles with dimensions 8cm by 10cm and 9cm by 12cm partly cover each other(see the diagram). the grey area 37cm2. what is the area of the shape marked by dots? How can I upload diagram?

    asked by Urmil on March 18, 2013
  10. Math

    In a standard set of dominoes, a face of each domino has a line through the center, with 0 to 6 dots on each side of the line. Each possible combination of dots is used exactly once, one combination per domino. What is the

    asked by Alyssa on November 13, 2016

More Similar Questions