In this video I describe how we can describe dispersion or variability in nominal data by calculating a variation ratio. This is a simple measure of spread that tells us the frequency of scores that differ from the mode, which is the only measure of central tendency that we have for nominal data. ... https://www.youtube.com/watch?v=nkmgeVKfITs
This video covers 10 practice multiple choice questions on social psychology and includes questions related to conformity, cultural dimensions, persuasion, attribution theory, and more. I hope this can help you to review your knowledge and understanding, let me know if you have any suggestions for future practice and review videos!
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https://www.youtube.com/watch?v=Re9pxmOWaaM
In this video I discuss peripheral color vision, including the common misconception that peripheral vision is completely black and white. By looking at the distribution of rods and cones throughout the retina, we can see that color vision extends to the far periphery. Next are two demonstrations, one showing that color can be perceived for a large stimulus, and another showing that color detection for a small stimulus is quite poor.
To try the demo, visit www.randomcolour.com on your phone and then try identifying the color from several angles in your far peripheral vision.
For further reading on density estimates, motion detection, and peripheral color detection, see:
Jonas JB, Schneider U, Naumann GO. Count and density of human retinal photoreceptors. Graefes Arch Clin Exp Ophthalmol. 1992;230(6):505-10.
doi: 10.1007/BF00181769. PMID: 142713
M.P.S. To, B.C. Regan, Dora Wood, J.D. Mollon, Vision out of the corner of the eye, Vision Research, Volume 51, Issue 1, 2011,
Pages 203-214, ISSN 0042-6989
https://doi.org/10.1016/j.visres.2010.11.008.
(https://www.sciencedirect.com/science/article/pii/S0042698910005614)
Tyler, C. W. (2015). Peripheral Color Demo. I-Perception, 6(6). https://doi.org/10.1177/2041669515613671
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https://www.youtube.com/watch?v=aIKlRnSsRuI
In this video I explain what else can happen to a neurotransmitter after release (besides binding to a receptor on the postsynaptic neuron). These include reuptake, enzyme deactivation, and autoreception, and I provide mnemonics for remembering each of these processes.
Don’t forget to subscribe to the channel to see future videos! Have questions or topics you’d like to see covered in a future video? Let me know by commenting or sending me an email!
Need more explanation? Check out my full psychology guide: Master Introductory Psychology: http://amzn.to/2eTqm5s
Enable closed-captioning or find a full transcript of this video here: http://www.psychexamreview.com/what-happens-to-neurotransmitters-after-release/
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https://www.youtube.com/watch?v=pXJXV6Z0NN4
In this video I discuss 3 difficulties of conducting psychology research: complexity, variability, and reactivity. I also explain demand characteristics, social desirability, and the Hawthorne Effect.
Need more explanation? Get my full psychology guide here: http://amzn.to/2eTqm5s
Enable closed captioning or find a full transcript of this video here: http://www.psychexamreview.com/difficulties-of-psychological-research/
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https://www.youtube.com/watch?v=7UDBjXnk4yA
In this video I describe how to make note-taking a more active process and what factors to consider before taking notes. For a text, this means thinking about your goals, the level of detail needed, and the density of the material in order to determine how often you should stop to write notes. For lecture, it's also important to consider what backups you'll have available in order to reduce the burden of taking notes while also listening to the lecturer.
Mortimer J. Adler & Charles Van Doren: How to Read a Book: The Classic Guide to Intelligent Reading (Amazon link): https://amzn.to/2TRQAtA
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https://www.youtube.com/watch?v=8CQ08MTTGpI
www.psychexamreview.com
In this video I describe several concepts and theories related to the formation of the relationship between mother and child. These include Konrad Lorenz's work with imprinting in goslings, Harry Harlow's work on comfort and security in rhesus macaques, and Mary Ainsworth's strange situation to assess the quality of attachment. Finally I consider the complexity involved in understanding this relationship due to the possible role of temperament, caregiver behavior, expectations, and reciprocal determinism.
Like these videos? Consider supporting Psych Exam Review on Patreon: www.patreon.com/PsychExamReview
Don’t forget to subscribe to the channel to see future videos! Have questions or topics you’d like to see covered in a future video? Let me know by commenting or sending me an email!
Need more explanation? Get volume 1 of my Master Introductory Psychology series here: http://amzn.to/2ENc44U
Deborah Blum's excellent biography of Harry Harlow: Love at Goon Park - http://amzn.to/2Fy1oa4
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https://www.youtube.com/watch?v=UxRHQSqAlwA
www.psychexamreview.com
In this video I describe the 4 scales of measurement proposed by Stanley Smith Stevens, which have become the standard way of defining types of data. These include nominal, ordinal, interval, and ratio. I discuss the defining features of each, provide a few examples in psychological research, and mention the descriptive statistics that can be applied for each type. I also explain the distinction between continuous and discrete variables that can be used when discussing interval or ratio data.
You can find the original 1946 paper by Stevens here: https://www.fpce.uc.pt/niips/novoplano/mip1/mip1_201314/scales/Stevens_1946.pdf
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https://www.youtube.com/watch?v=62tPLQPg9-8
www.psychexamreview.com
In this video I discuss how color vision occurs and explain two important theories for understanding color vision, Young-Helmholtz Trichromatic Theory and Opponent Process Theory. Along the way I describe how some people are able to see ultraviolet (UV) light, a trick you can use to see infrared light, and two demonstrations of color afterimages.
Like these videos? Consider supporting Psych Exam Review on Patreon: www.patreon.com/PsychExamReview
Don’t forget to subscribe to the channel to see future videos! Have questions or topics you’d like to see covered in a future video? Let me know by commenting or sending me an email!
Need more explanation? Check out my full psychology guide: Master Introductory Psychology: http://amzn.to/2eTqm5s
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https://www.youtube.com/watch?v=qjJmNJd38CY