A quick check to see how good you are at the 1-way within subjects ANOVA

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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.

 

Condition 1: Fast Food

Condition 2: Half Fast Food and Half Non Fast Food

Condition 3: Non Fast Food 

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.


 

Background | Enter Data | Analyze Data | Interpret Data | Report Data

 

 

 

 

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