Stroop Effect Experiment

Attention is thought to be selective-focused on one subject at a time. Traditionally, it has been assumed that automatic processing is involuntary, it does not require attention, and is relatively fast; whereas, controlled processing is voluntary, does require attention, and is relatively slow. We can conclude from this that the more we repeat a certain material or tasks the more it becomes automatic and effortless to us.

The Stroop effect was tested on four different tasks. Nineteen Queens College students were recruited by flyer, and each were assigned to a word reading task, color reading task, color inhibition task, and word inhibition task. They were timed using a stopwatch function on a cell phone, to name the color, or word to the quickest of their ability. In the order from longest reaction time to shortest: inhibition color naming task, color naming task, inhibition word reading, and word reading. This study shows that people can read words more quickly than they can name colors, and that inhibiting an automatic response to color/word tasks will take longer to do than tasks that do not involve inhibition.

Alansari and Baroun (2004) had participants state whether they were color blind, dyslexic, or if they had previously ever taken the Stroop test before, it was important that these interferences were factored out in order to obtain a conclusive observation in regards to all the participants involved in the experiment. MacLeod (1991) had suggested that those with disabilities tended to show high Stroop interference, also along with those with an attention deficit disorder since maintaining concentration throughout the experiment and test is an important factor in obtaining more accurate results without a significant outlier. Also different levels of interference where shown in children and adults, it was also observed that interference began at an early age, declined in the adult years since most have a peak of cognitive development and understanding in adult years, but once again increased interference around the age of 60 (MacLeod,

The aim of this experiment is to study autonomic processes by replicating the previously carried out Stroop effect by using numbers. A number of 180 random participants aged in between 18-89 were recruited to participate in this experiment. Participants were presented with a stroop experiment task sheet which consists of three parts which was the control, congruent and incongruent conditions. Time was taken and recorded for each participant to say out the number of stars in the control condition and to say out the number of numbers in the congruent and incongruent conditions. Based on the results, participants took a considerably longer time to say the number of number in the incongruent condition than in the congruent condition.

In this within subjects design, we used a 2 (Congruency: Congruent vs. Incongruent) x 2 (Task Type: Naming color vs. Naming word) factorial; the dependent variable measured was reaction time. The stimuli were presented on a seventeen inch computer monitor and participants were given a standard keyboard for their responses. The software used for this experiment is METACARD. The stimuli used were four words: red, green, blue, yellow; and four colors: red, green, blue, yellow. For the independent variable of congruency, there were four possible congruent items and twelve possible incongruent items. For the independent variable of task, there was one block of forty-eight trials asking the participant to type the word and one block of forty-eight trials asking the participant to type the color. The order of each block was randomly determined by the computer for each participant. Half of the participants did the word naming then color naming; the other half did color naming then word naming.

If the reaction time between the stimulus and the response increases when the colour of the word and the word itself are not the same, then the reaction time would decrease when the word and the colour of the word are the same. The Stroop effect is an observable way to view the difficulties the brain has in identifying conflicting sensory information. The conflicting sensory data that people are given will affect the time of their responses and impact on their ability to read the information out correctly and fluently.

The Stroop effect is demonstrated by the reaction time to determine a color when the color is printed in a different color’s name. Participants respond slower or make more errors when the meaning of the word is incongruent with the color of the word. Despite knowing the meaning of the word, participants showed incapability of ignoring the stimulus attribute. This reflects a clear instance of semantic interference and an unfathomed failure of selective attention (Stroop, 1935).

In the Stroop task 8 college student participants from a cognitive lab course. Two participants were males and the remaining 6 participants were female. Using a computerized program Cedrus SuperLab 4.5 the participants were tested in the Stroop Task. The participants were asked to identify four colors, blue, green, red or yellow. In addition, participants were also asked to identify the names of the colors they saw by pressing a corresponding computer key with their middle and index fingers, D for red, F for blue, J for green, and K for yellow. Our experiment was conducted in two phases a practice phase and a testing phase.

In order to test this hypothesis, an experimental study was designed to calculate the time it takes for participants to respond to a cue under control or experimental conditions.

In Stroop’s (1935) interference article, it was discovered that there is more interference in color naming then color reading. The experiment described in the article tested whether there was more interference from words or from colors (Stroop 1935). Two tests were administered each with a separate control. The RCNd test determined how fast one could read color names where the color was different from the color name while the NCWd test determined how fast one could name colors where the color was different from the word on the page. The mean time for 100 responses increased from 63.3 seconds on the RCNd test to 110.3 seconds on the NCWd test or an

We are replicating J.R. Stroop’s original experiment The Stroop Effect (Stroop, 1935). The aim of the study was to understand how automatic processing interferes with attempts to attend to sensory information. The independent variable of our experiment was the three conditions, the congruent words, the incongruent words, and the colored squares, and the dependent variable was the time that it took participants to state the ink color of the list of words in each condition. We used repeated measures for the experiment in order to avoid influence of extraneous variables. The participants were 16-17 years of age from Garland High School. The participants will be timed on how long it takes them to say the color of the squares and the color of the words. The research was conducted in the Math Studies class. The participants were aged 16-17 and were students at Garland High School. The results showed that participants took the most time with the incongruent words.

The Stroop experiment can be traced back as far as the nineteen century around the time of some particular works of Cattell and Wundt. The experiment was first written about in 1929 in German. The experiment was name after John Ridley Stroop after he had written the article “Studies of interference in serial verbal reactions,” which was published in 1935.there have been over 700 replications of this experiment

A study was conducted by J.R. Stroop in order to test the effects of automaticity, specifically on reading. In one condition, Stroop presented his participants with 100 words, each of which spelled out a color, but the ink of the word was a different color than

In his historic study, Stroop found that reading names of colors interfered with individuals’ ability to name the ink color the word was printed in when the two differed (i.e., the word “BLUE” written in red ink) (1935). However, the basis of this phenomenon can be traced back to Cattell who found that naming colors and pictures took twice as long to accomplish than reading the word these colors or pictures represented (1886). He concluded that this was due to reading being an automatic process while identifying colors or pictures requires a conscious effort (Cattell, 1886). MacLeod (1991) reflects that it was Cattell’s work which strongly influenced future psychologist including Stroop.