Stroop Lab Report Essays

Stroop Lab Report Essays Stroop Lab Report Paper Stroop Lab Report Paper The word Blue when presented in blue ink, on the other hand is an example of a congruent-colored word. Because the left hemisphere has demonstrated an overall advantage relative to the right hemisphere on most verbal tasks, interference effects were hypothesized to be greater in the left hemisphere than in the right hemisphere (Balancer Camino, 2002). Numerous studies have been made in hope to fully understand the Strop effect, yet several issues remain open. The primary purpose of this duty was to determine whether the Strop phenomenon is equally strong in both brain hemispheres. Participants collected from our research methods lab were asked to complete an online experiment measuring the time of interference it took them to depict the color of the ink of the color-words. Furthermore, each color was assigned a number. For example, the ink color red was represented by the number two. The color words were also randomly presented in the center, left, and right of the screen to measure our hypothesis, which stated that incongruent words presented to the left hemisphere exhibit greater Strop effect than when they are presented to the right hemisphere. Along with our second hypothesis stating that there is greater interference (Strop effect) when color words are incongruent with their presentation color. The Strop effect can be denoted through the time of interference that it takes to name the ink color of a word, varying in word position and word color. Several accounts have been made to explain the Strop effect. In Manacles model of the Strop there is a slight into that hemispheric effects might be present; in theory, hemispheric effects are expected to be superior in the left hemisphere. Methods Participants A total of 87 subjects (76 Female, 11 Male), drawn from students in two research method labs, took part in a mufti-experiment study and were given course credit as compensation. Independent variables that were tested include: L Congruent vs Non-congruent c Left-presentation vs Centered-presentation vs Right-presentation c Input method: Keypad (37 participants, lab 1) vs Keyboard (50 participants, lab 2) The pendent variable that was measured in the study was reaction time. Procedure Research participants were to complete at least 72 trials. Each trial measured the time of interference it took them to depict the color of the ink of the color-words. Furthermore, each color was assigned a number. For example, the ink color red was represented by the number two. Each trial began with a plus sign, serving as a focal point on the computer screen. Research participants were to press a key when they were ready for a word to be presented. Following the key press was random delay of about 1 to 4 seconds before the word appears. Words then appeared written vertically on the screen for a fixed time. Four color words were used: red, blue, green and yellow. Words were randomly printed in a word-color congruent form or non-congruent form appearing at any of three positions (left, center, and right).

Marjorie Joyner and the Wave Machine

Marjorie Joyner and the Wave Machine An employee of  Madame Walkers  empire, Majorie Joyner invented a permanent wave machine. This device, patented in 1928, curled or permed womens hair for a relatively lengthy period of time. The wave machine was popular among women white and black allowing for longer-lasting wavy hair styles. Joyner went on to become a prominent figure in Walkers industry. Early Years Joyner was born in 1896 in the rural Blue Ridge Mountains of Virginia and moved in 1912 to Chicago to go to school study cosmetology.   She was the granddaughter of a white slave owner and a slave. Joyner graduated from A.B. Molar Beauty School in Chicago in 1916. She was the first  African-American  to achieve this. At the beauty school, she  met  Madame C. J. Walker, an African-American beauty entrepreneur who owned a cosmetic empire. Always an advocate of beauty for women, Joyner went to work for Walker and oversaw 200 of her beauty schools, working as the national adviser. One of her major duties was sending Walkers hair stylists door-to-door, dressed in black skirts and white blouses with black satchels, containing a range of beauty products that were applied  in  the customers house. Joyner taught some 15,000 stylists over her 50-year career.   Wave Machine Joyner was also a leader in developing new products, such as her permanent wave machine. She  invented her wave machine as a solution to the hair problems of African-American women. Joyner took her inspiration from a pot roast. She cooked with paper pins to shorten prep time. She experimented initially with these paper rods and soon designed a table that could be used to curl or straighten hair by wrapping it on rods above the persons head and then cooking them to set the hair. Using this method, hairstyles would last several days. Joyners design was popular in  salons  with both African-American and white women. Joyner never profited  from  her invention, however, because Madame Walker owned the rights.  In 1987, the Smithsonian Institution in Washington opened an exhibit featuring Joyners permanent wave machine and a replica of her original salon.   Other Contributions Joyner also helped write the first cosmetology laws for the state of  Illinois,  and founded both a sorority and a national association for black beauticians. Joyner was friends with Eleanor  Roosevelt,  and helped found the  National Council of Negro Women. She was an advisor to the Democratic National Committee in the   1940s,  and advised several New Deal agencies trying to reach out to black women. Joyner was highly visible in the Chicago black community, as head of the  Chicago Defender  Charity network, and fundraiser for various schools.   Together with Mary Bethune Mcleod, Joyner founded the United Beauty School Owners and Teachers Association.  In 1973, at the age of 77, she was awarded a bachelors degree in psychology from  Bethune-Cookman College  in  Daytona Beach, Florida. Joyner also volunteered for several charities that helped house, educate, and find work for African Americans during the Great Depression.