Gender Comparison of the Stroop Effect


PURPOSE

The first purpose of this experiment was to determine whether for seventh grade boys and girls, a word’s color would be harder to state when the meaning was a mismatched word.

The second purpose of this experiment was to see if the seventh grade boys would have more difficulty speaking the color of words with a mismatched meaning than the seventh grade girls.

I became interested in this idea when I was in my mom’s eighth grade classroom. I saw a list of words printed in colors that didn’t match the actual word. I tried to say the word’s color, but found it was very hard to do. I wondered, “If I try this on other people will they state the word, or the word’s color?”

The information gained from this experiment could inform students, and teachers who are interested in how the human’s brain prioritizes stimuli.

HYPOTHESIS

My first hypothesis was that for seventh grade boys and girls, a word’s printed color would be harder to state when the meaning was a mismatched color word.

My second hypothesis was that seventh grade boys would have more difficulty speaking the color of words with a mismatched than the seventh grade girls.

I based my first hypothesis on Bryanna Bruskland’s results from similar testing in 2003-2004. Her results indicated that the Stroop color affected both the seventh grade boys and girls.

I also based my second hypothesis on Bryanna Bruskland’s project when she tested to see whether or not boys would say the color faster than the girls would. Her results indicated that girls could say the color faster than the boys could.

EXPERIMENT DESIGN

The constants in this study were:

•    Amount of words in test number 1 (32)

•    Amount of words in test number 2 (32)

•    Amount of words in test number 3 (32)

•    The colors of the words and the words in test number 1

•    The colors of the words and the words in test number 2

•    The colors of the words and the words in test number 3

•    The grade of the students (seventh)

•    Room tested in (Team 5 Activity Room) 

•    The instructions

•    The example test

•    Color of paper (white)

•    The font type and size

•    Number of seventh grade boys (10)

•    Number of seventh grade girls (13)

The manipulated variable was the match and mismatch of the word’s color to the word’s meaning.

The responding variables were how fast it took the seventh grade students to state the word’s color and the number of errors.

To measure the responding variable, I used a stopwatch to time how long it took the student to say the word list. I tallied the errors as they gave their responses.

MATERIALS

Quantity 
Item Description
1
Sample Test
1
Mis-Matched Stimuli Test
23
Parent Slips
1
Testing Room
1
Data Sheet
23
Permission Slips
1
Stop Watch
1
Unrelated Stimuli Test
1
Matched Stimuli Test
69
Answer Sheets for Experimenter to tally errors
        
PROCEDURES

1.    Create Word Tests A, B, and C by writing all the colors on a piece of scrap paper and have a student randomly pick color from a coffee mug

2.    Make sure that the student picks the color four times 

3.    Send out 23 permission slips to 10 girls and 13 boys

4.    Create the Test Order Table for Word Tests A, B, and C to avoid having subjects take the tests in the same order (Word Test A could interfere with Word Tests B and C)

5.    When signed permission slips are returned, randomly assign students to test groups 1, 2, and 3

6.    Select a time with the teachers of the students

7.    Test one student at a time in a quiet school area

8.    Tell the student the instructions and answer questions

9.    Give them the sample test and help them practice saying the color of the shape

10.    If the student does not pass this test and has more then 10 colors than the student can finish the test but the information should be destroyed

11.    Using the Test Order Table, give Word Test A, B, or C first

12.    Start timing when you say go

13.    Mark errors on the answer sheet as student says the colors

14.    When they are done saying the colors of the words record the time on the answer sheet

15.    Repeat steps 9 through 12 with the 2nd test from the Test Order Table

16.    Repeat steps 9 through 12 with the 3rd test from the Test Order Table

17.    Release student back to class

18.    Repeat steps 6 through 16 with the rest of the subjects

RESULTS

The first original purpose of this experiment was to determine whether for seventh grade boys and girls, a word’s color would be harder to state when the meaning was a mismatched word.

The second purpose of this experiment was to see if the seventh grade boys would have more difficulty speaking the color of words with a mismatched meaning than the seventh grade girls.

The results of the experiment showed that the girls and boys together performed better on the Matched Stimuli, then the Unrelated Stimuli, and then the Mis-Matched Stimuli. 

The results for the word testing for the Matched Stimuli was that the overall average for errors was 0.1, the girl’s average was 0.1, and the boy’s average was 0.1 also. For the response time the overall average was 14.3 seconds, the girl’s average was 13.3 seconds, and the boy’s average was 15.7 seconds. 

On the testing for the Unrelated Stimuli, the overall average for the number of errors was 0.7, the girl’s average was 0.3, and the boy’s average was 1.3. For the response time the overall average was 22 seconds, the girl’s average was 22.1 seconds, and the boy’s average was 21.9 seconds. 

The testing for the Mis-Matched Stimuli, the overall average for the number of errors was 1.9, the girl’s average was 1.9, and the boy’s average was 1.9. For the response time the overall average was 28.3 seconds, the girl’s average was 28.7 seconds, and the boy’s average was 27.7 seconds. 

CONCLUSION

My first hypothesis was that for seventh grade boys and girls, a word’s printed color would be harder to state when the meaning was a mismatched color word.

The results indicate that this hypothesis should be accepted, because on the test called, “Matched Stimuli,” the average number of errors was 0.1 and the number of seconds was 14.3, but on the word test called, “Mis-matched Stimuli,” the average number of errors were 1.9 and the number of seconds was 28.3. That proves that when the meaning is a mismatched color word it will be more difficult for the student to state the printed color.

The second hypothesis was that seventh grade boys would have more difficulty speaking the color of words with a mismatched meaning than the seventh grade girls.

My results indicate that this hypothesis should be rejected because on all the word tests, the boy’s seemed to get a better score than the girl’s. For example, on the word test named, “Mis-Matched Stimuli,” the boy’s took on average 27.7 seconds to tell me the printed color word, but the girl’s took on average 28.7 seconds. That shows that the boy’s were faster than the girl’s on telling me the printed color word, and the number of errors was about the same.

After thinking about the results of this experiment, I wonder if third graders, seventh graders, and eleventh graders would compare.

If I were to conduct this project again I would try to have many more subject than I had this time. I would try to have a more equal number of boys and girls, I would also use more words per test so that I can have more results to prove my purpose and my hypothesis.


Researched by ---- Jacklyn B

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Different Colored Bird Feeders On How Much Seed Wild Birds Eat

  


PURPOSE

The purpose of this experiment was to determine how birdfeeder color affected the amount of seed eaten by birds.

I became interested in this idea because every winter when it got cold I put birdseed out for the birds and I wanted to find out how to make more birds come to my feeders. I thought the color of the feeder might matter.

The information gained from this experiment could affect anyone who wanted birds in their yard, or wanted to feed birds in the winter. People who work for the Department of Fish and Wildlife might also be interested.

HYPOTHESIS

My hypothesis was that the green feeder would attract the most birds. 

I based my hypothesis on the conclusion of another student scientist’s experiment from 1998, “To What Color Bird Feeders are Birds Most Attracted?” Carrie Shramm, the experimenter, concluded that the green feeder did attract the most birds.

EXPERIMENT DESIGN

The constants in this study were:

•    Type of feeders used

•    Space between feeders

•    General location of feeders

•    Scale used to weigh the feeders 

•     Kind of birdseed 

•    Amount of birdseed in each feeder

•    Number of feeders used

•    How long the feeders are available to the birds 

The manipulated variable was the color of the feeders.

The responding variable was the mass of the birdseed eaten.  

To measure the responding variable, the mass of birdseed in each feeder was determined every two days for three weeks using a triple beam balance scale when full and when partially emptied by birds.

MATERIALS
QUANTITY
ITEM DESCRIPTION
5
Birdfeeders
4
Cans of spray paint(red, green, silver, blue)
1
Triple beam balance scale
5
Bag of birdseed
1
Roll of masking tape
4
Hooks to hang the feeders

   PROCEDURES


1)    Paint Feeders

a) Using cans of spray paint, paint each feeder a different color

•    One feeder painted red

•    One feeder painted green

•    One feeder painted blue

•    One feeder painted silver

•    One feeder unpainted

b) Be sure to get NO paint near the seed slots in the feeders, where the birds actually eat 

c) Feeders do NOT have seed slots that the birds could peck, accidentally eating paint

d)    Drill in screws to hang feeders 0.61 meters apart

2) Fill seed to very top of feeder

a)    Use clean, dry, fresh wild bird seed purchased from Petsmart

b)    Weigh each feeder in grams using a triple beam balance scale

c)    Record full weight data

3) Put feeders out for 2 days

a)     Hang each feeder on hook

•    Red feeder on first hook

•    Green feeder on second hook

•    Blue feeder on third hook

•    Silver feeder on fourth hook

•    Clear feeder on fifth hook

b)    Keep each feeder out from about 2:30 p.m. one day to about 2:30 p.m. two days later

4) Bring feeders inside to weigh after 2 days

a)    Use triple beam balance to weigh each feeder, record the mass 

b)    Refill feeders, reweigh, and record full feeder weight

5) Replace Feeders outside

a)    Rotate feeders on the hooks, moving each feeder over 1 space to the right.  For example, to replace the feeders for the first time do the following:

•    Clear feeder on first hook

•    Red feeder on second hook

•    Green feeder on third hook

•    Blue feeder on fourth hook

•    Silver feeder on fifth hook

6) Repeat steps 2-5 for 2 weeks

a) After 2 weeks, average the weights of each color feeder

7) Subtract ending mass from full mass for each trial

8) After 2 weeks, average the weights of each color feeder

RESULTS

The original purpose of this experiment was to determine how birdfeeder color affected the amount of seed eaten by birds.

The results of the experiment was the birds ate most out of the red feeder, then the red feeder with an average mass of 517.6 grams, then the green  feeder with 516.5 grams, then the blue feeder with 502.7 grams , then the silver feeder with 495.1 grams, and they ate the least out of the clear feeder with 474 grams. 

CONCLUSION

My original hypothesis was that the green feeder would attract the most birds.

The results indicate that this hypothesis should be rejected, because the birds ate slightly more out of the red feeder  than the green feeder.

After thinking about the results of this experiment, I wonder if the location of the feeders matters.

If I were to conduct this project again I would make sure the birds already knew where the feeders were so they would start coming right away. I would also use better outdoor spray paint on the feeders. My feeders may not have been the best kind to use. I’d try to find better ones.  


 Researched by  ------ Whitney B

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