Lab Assignment 2
Sixteen people were asked to
listen to one of four tapes.
Group 1 listened to Frank Sinatra, group 2 listened
to elevator music, group 3 listened to the symphony, and
group 4 listened to whale songs.
After listening to the tapes, The participants were
asked to rate their anxiety level on a 1 to 10 scale, with
higher numbers representing greater anxiety.
STEP 1: State the Null and
STEP 2: Find the critical
value for the test.
STEP 3: Complete the ANOVA
STEP 4: Evaluate H0
(reject or fail to reject)
3A. Given your answer in Step 4,
would it be appropriate to conduct a Tukey post-hoc test?
Use SPSS to conduct an ANOVA test for the above problem.
Use the data editor to input the data, and then
select ‘analyze’ from the menu at the top. Select ‘compare means’ and then look for independent
single factor ANOVA.
You might choose ‘options’ and check the box to
show the descriptive statistics.
The means might help you understand the output a
little better. Use
the arrows to select your factor or independent variable
and your dependent variable.
Click the ‘okay’ button.’
An output file should be generated when you run the test.
Use the output file to help you answer the
questions above. You
can double check that you did it right by computing the
t-test by hand
Save this file with your answers and the output file.
Send it to me by the assigned due dates.
Note that when you input your data this time you will still put
all the above data in a single column (VAR1).
You will use the second column
(VAR2) to specify which group the data point in the
firs column came from.
So, you will have only 1’s, 2’s, 3’s, and
4’s in the second column
Note on Saving Files: