A researcher is interested in whether there are changes in child aggression after they watch another...

A researcher is interested in whether there are changes in child aggression after they watch another child get something that they want. She devises an experiment where children come into her lab and are given worn and broken toys to play with. After a short time, a new child is brought into the room and is given new, shiny toys to play with. The researcher wants to know whether there are changes in aggressive behavior among the children with the broken, worn toys after they see the new children playing with new, shiny toys. She measures the number of aggressive behaviors displayed by the children who were given the worn and broken toys both before and after they watch the new children playing with new, shiny toys. Her findings are summarized in the table below.

Child	Before	After
A	16	18
B	10	11
C	17	19
D	4	6
E	9	10
F	12	14

a. Identify the IV, IV levels, and DV.

IV:
Levels:

DV:

b. Is this experiment a paired-samples or independent-samples design?

c. State null and alternative hypotheses in words.

H₀:
H₁:

d. Conduct a statistical test of the hypothesis

t =

e. Decide whether to reject or retain the null hypothesis.

f. Interpret your results.

Expert Solution

orchestra answered 2 years ago

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