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You would like to measure the effect
of fast food on performance. You administer one group of workers fast food
for one month. You administer a second group of workers half fast food and
half non fast food for one month. You administer a third group of workers
non fast food for one month. Each worker participates in all conditions of
the experiment as each condition is separated by one month of time. After
each month, you measure how productive workers are by counting how many
widgets they have produced during that month. The following are the
results. See the number of widgets produced by each worker in each
condition.
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Condition 1: Fast Food |
Condition 2: Half Fast Food and
Half Non Fast Food |
Condition 3: Non Fast Food
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Worker 1 = 234 widgets
Worker 2 = 345 widgets
Worker 3 = 243 widgets
Worker 4 = 221 widgets
Worker 5 = 226 widgets
Worker 6 = 345 widgets
Worker 7 = 267 widgets |
Worker 1 = 210 widgets
Worker 2 = 320 widgets
Worker 3 = 230 widgets
Worker 4 = 227 widgets
Worker 5 = 230 widgets
Worker 6 = 346 widgets
Worker 7 = 268 widgets |
Worker 1 = 1000 widgets
Worker 2 = 1245 widgets
Worker 3 = 1340 widgets
Worker 4 = 1100 widgets
Worker 5 = 900 widgets
Worker 6 = 1500 widgets
Worker 7 = 1245 widgets |
1. Conduct a 1-Way Within Subjects
ANOVA
2. Based on your experimental
design, report the type of test used and what it was used to test by filling
in the blanks of the following sentence.
“A _________________________
was conducted to compare ______________ in
______________,
_______________ and _______________ conditions.”
3. Based on your SPSS output and the
design of this experiment, fill in the blanks in the following sentence and
circle significant or not significant.
“There was a significant (not
a significant) effect of _______________, Wilks’ Lambda
= ______, F (_______,_______)
= _______, p = _______. Post hoc comparisons using
the____________________ test
indicated that _________________________________
_______________________________________________________________________
_______________________________________________________________________”
4. Write a sentence that states what
your results mean in terms of your experiment – in words that an
inexperienced scientific reader could understand.
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