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The aim of this assignment is to prepare you for your final research report. Bel

by | Apr 26, 2022 | English | 0 comments

 

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The aim of this assignment is to prepare you for your final research report. Below you will see some background on the proposed study you will be analyzing and writing up as a research report. For this assignment, I have designed the study for you, provided you with the data you need to analyze, and proposed your data analysis that you will conduct. You will be working in your previously created groups.
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Background
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Are there asymmetries in the functions of the two cerebral hemispheres? A great deal of evidence has accumulated in recent years suggesting that the left brain and the right brain are not identical in their capabilities (deKovel, et al, 2017; Gazzaniga, Bogen, & Sperry, 1967; Gazzaniga, 1970; Nass, & Gazzaniga, 1987; Springer & Deutsch, 1989, Wei, Zhong, Nie & Gong, 2018). This study is designed to demonstrate that the right hemisphere performs visual spatial tasks better than the left hemisphere for right-handed people, who comprise over 90% of the population. For most right-handers, the right hemisphere specializes in emotional, nonverbal, and visual-spatial tasks whereas the left hemisphere excels in verbal and analytical tasks.
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Proposed Study
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The mirror-image tracing study requires that the participant trace the star as shown in?Figure 1, first with one hand, and then with the other hand. Because mirror image tracing is primarily a visual-spatial task, and each half of the brain controls the contralateral side of the body, it is expected that right-handed participants will take longer to complete the task with their right hand (controlled by the left hemisphere) compared to their left hand (controlled by the right hemisphere). Please note that this prediction may not necessarily hold for left-handed participants, because their brains are more bilateral.
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Trace the star shown in the picture
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Design
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This study uses one independent variable in a within-subjects design. There are two levels to the independent variable: the left hand vs. the right hand. The dependent variable is the time it takes the participant to complete the tracing.
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Data Analyses
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A paired t-test will be conducted to determine if the completion times of the two conditions (the left-hand condition vs. the right-hand condition) are significantly different. SPSS must be used to complete the analysis. Please see video below on how to run a paired t-test. For this assignment, please use this data set. Below is a video that demonstrates how to perform a paired samples t-tests.

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