1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Darya [45]
3 years ago
14

The term "between-subjects" refers to

Mathematics
2 answers:
spayn [35]3 years ago
5 0

Answer:

b. observing different participants one time in each group

SS_{between}=SS_{model}=\sum_{j=1}^p n_j (\bar x_{j}-\bar x)^2

If we analyze the formula for the sum of squares between we see that we are subtracting the mean for each group minus the grand mean. But in order to find the mean of each group we just need to observe just one time the dependent variable of interest for each group.

Step-by-step explanation:

Previous concepts

Analysis of variance (ANOVA) "is used to analyze the differences among group means in a sample".

The sum of squares "is the sum of the square of variation, where variation is defined as the spread between each individual value and the grand mean"

Solution to the problem

If we assume that we have p groups and on each group from j=1,\dots,p we have n_j individuals on each group we can define the following formulas of variation:  

SS_{total}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x)^2

SS_{between}=SS_{model}=\sum_{j=1}^p n_j (\bar x_{j}-\bar x)^2

If we analyze the formula for the sum of squares between we see that we are subtracting the mean for each group minus the grand mean. But in order to find the mean of each group we just need to observe just one time the dependent variable of interest for each group.

For this reason the best option on this case is:

b. observing different participants one time in each group

SS_{within}=SS_{error}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x_j)^2

And we have this property :

SST=SS_{between}+SS_{within}

luda_lava [24]3 years ago
4 0

Answer:

b. observing different participants one time in each group

Step-by-step explanation:

Between-subjects or groups design is a common experimental design used in psychology and other social science fields. Between-subjects is a type of experimental design in which the subjects of an experiment are assigned to different groups or conditions or participants in which each subject is being tested base on only one of the experimental conditions at a time. In Between-subjects experimental study, participants can be part of the treatment group or the control group, but cannot be part of both. A complete new group is required for each group, If more than one treatment is tested. The other way of assigning test to participants is Within-subjects design.

The major difference between Between-subjects design and Within-subjects design is that in Within-subjects design, the same participants test all the conditions of the experiment while in Between-subjects design different participants test each condition of the experiment.

You might be interested in
(-5, 3), (2, 1) what is the slope of the line that passes through the points
lord [1]
Here is a photo of how to solve it

3 0
3 years ago
Which of the following rational functions is graphed below?​
vampirchik [111]

Answer:

The correct option is D.

i.e.

f\left(x\right)=\frac{1}{x\left(x+4\right)} is the correct option.

The correct graph is shown in attached figure.

Step-by-step explanation:

Considering the function

f\left(x\right)=\frac{1}{x\left(x+4\right)}

\mathrm{Domain\:of\:}\:\frac{1}{x\left(x+4\right)}\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x

\mathrm{Range\:of\:}\frac{1}{x\left(x+4\right)}:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\le \:-\frac{1}{4}\quad \mathrm{or}\quad \:f\left(x\right)>0\:\\ \:\mathrm{Interval\:Notation:}&\:(-\infty \:,\:-\frac{1}{4}]\cup \left(0,\:\infty \:\right)\end{bmatrix}

\mathrm{Axis\:interception\:points\:of}\:\frac{1}{x\left(x+4\right)}:\quad \mathrm{None}

\mathrm{Extreme\:Points\:of}\:\frac{1}{x\left(x+4\right)}:\quad \mathrm{Maximum}\left(-2,\:-\frac{1}{4}\right)

So, the correct graph is shown in attached figure.

Therefore, the correct option is D.

i.e.

f\left(x\right)=\frac{1}{x\left(x+4\right)} is the correct option.

7 0
3 years ago
I would like step by step explanation
Nezavi [6.7K]

Answer:

the number is 87

Step-by-step explanation:

the photo contains step by step

3 0
3 years ago
Read 2 more answers
True or false. this set of three numbers are measurements of a right triangle 26, 24, 10
Firdavs [7]

True

using the converse of Pythagoras' identity

Given 3 sides of a triangle, if the longest side squared is equal to the sum of the squares of the other 2 sides then triangle is right.

longest side squared = 26² = 676

sum of other 2 sides squared = 24² + 10² = 576 + 100 = 676

Hence triangle is right


5 0
3 years ago
Cameron wants to buy a new bike that costs $112. He is saving $8 per week. How many weeks will it be until Cameron has all the m
leva [86]

the answer is 14

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which statement is true ?
    11·1 answer
  • Which graph shows the solution to the following system of linear inequalities?
    15·1 answer
  • Does anything multiply to -177 and add to 0?
    10·1 answer
  • The width of a rectangle is 7 meters greater than its length. If the area of the rectangle is 170 square meters, write the quadr
    13·1 answer
  • An average ant is 1/4 inch long. An average aphid is 3/32 inch long.how many times longer is an average ant that an average aphi
    7·2 answers
  • Explain how you would graph the line containing a slope of –1/5 that goes through the point (1,–4).
    7·2 answers
  • Find the value of the expression 3m2 + 2p2 − 15 when m = 3 and p = 10.
    10·2 answers
  • In triangle ABC, a=31 , b=22 , c=18. Identify m∠A rounded to the nearest degree.
    11·1 answer
  • The maximum or minimum point of a parabola is called the __________.
    15·1 answer
  • 7.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!