What is the difference between an extraneous variable and a confounding variable?Maximum number of characters (including HTML tags added by text editor): 32,000Show Rich-Text Editor (and character count)MAR25étv A吕口F3D00 F4IIF2F5F6F7

The following are the difference between the Extraneous variable and the Confounding variable .

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A study involves three variables: income level, hours spentwatching TV per week, and hours spent at home on the Internet per week. List some ways the variables might be confounded.
A study found that 50 pedestrians gave more money to a street beggar if the beggar had a cute and hungry-looking dog with them compared to if they were alone. The gender of the pedestrians was also noted. Which of the following sentences describes a simple effects analysis on these data? Oa. The difference in donations when the beggar had a dog compared to not Ob. The effect of having a dog compared to not on donations calculated separately for male and female pedestrians Oc. The relative difference between male donations and female donations when the beggar had a dog compared to not Od. Using a graph to do a simple inspection of the mean donations from male and female pedestrians when the beggar had a dog or was alone
Carl is conducting a research study and finds a significant positive correlation between a state's per capita consumption of mozzarella cheese and the number of doctoral degrees in civil engineering that are awarded (real example!). However, this association is actually caused by a third variable that Carl did not measure. This variable is known as a: Group of answer choices distractor variable confounding variable independent variable lactose intolerant variable
What is the Independent variable and the dependent variable of this problem? A neuropsychologist is studying brainlateralization—the degree to which thecontrol of various cognitive functions islocalized more in one cerebral hemispherethan the other. This researcher is awarethat for men, being right-handed seemsto be associated with a greater degree oflateralization than does being left-handedbut that this relationship may not applyto women, who seem to be less lateralizedin general. Various tasks are used in combination to derive a lateralization scorefor each subject as shown in the followingtable.
Ice cream has been erroneously reported to cause shark attacks. However, better research studies highlight that both increases in ice cream consumption and shark attacks are actually caused by high temperatures in the summer months. Which of the following describes high temperatures as it related to ice cream consumption and shark attacks? It is a mediator. It is a confounder. It is the outcome variable. It is the dependent variable.
You are looking at age of first marriage’s (independent variable) effect on the age of having a first child (dependent variable): You find that B0 = 2 and B1 = 1.2 Is the B0 useful in this case? Why or why not? For these variables, what does B1 mean in words?
True or false Interaction occurs when the relationship between an independent variable and a dependent variable is affected by another independent variable
Compare these three estimators. Which one do youprefer and why?
Hello good day. I am having problem doing this. I need your help and hoping for a response on this matter. Thank you. Give a situation wherein a researcher would encounter a possible CONFOUNDING variable.
The head of the marketing division of a leading chocolate manufacturer must decide among our different wrapper styles for the chocolate. To provide a database for the decision, he has the chocolate placed in the different wrappers and distributes them to five supermarkets. At the end of 2 weeks, he finds that the following amounts of chocolate were sold: Wrapper A Wrapper B Wrapper C Wrapper D 90 98 130 82 State the dependent and independent variable Is this directional or non directional test
From the following situations, which one identifies the independent variable and dependent variable correctly? a) The more time people spend using social media, the less able they are to express themselves in conversation. The independent variable is the expression in conversation while the dependent variableis the time spent usingsocial media. b) Taking a nap in the afternoon makes people more relaxed andless irritable for the rest of the day. The independent variable is the level ofrelaxation and irritability of a personfor the rest of the day while the dependent variable is taking a nap in the afternoon. c) The relationship between the amount of violence that childrensee on television and the amount of aggressive behavior they display. The independent variable is amount of aggressive behavior display by childrenwhile the dependent variable is the amount of violence that children see on television. d) Does attentiveness in classinfluence teacher's effectiveness? The independent…

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