what is the independent variable for the tadpole diet experiment? what is the independent variable for the tadpole diet experiment?

It brings people back to those dopey science classes they didnt like, but that doesnt make the steps any less critical. But which wells or people go into the control group and which go into the experimental group? When scientists design experiments, they determine what will be their independent, dependent, and constant variables. The only difference between your control and experimental groups is the type of food the tadpoles . what is the independent variable for the tadpole diet experiment? Independent Variable The variable that is stable and unaffected by the other variables you are trying to measure. As a more realistic example of a controlled experiment, let's examine a recent study on coral bleaching. Parts of the experiment: Independent vs dependent variables. For example, in Experiment 2 above, some of the constant variables would be the type of plant being grown, the amount of fertilizer each plant is given, the amount of water each plant is given, when each plant is given fertilizer and water, the amount of sunlight the plants receive, the size of the container each plant is grown in, and more. Once you have a protocol, Redman suggests you do a small-scale experiment to test out whether the process youve laid out will work. An independent variable is a variable, often denoted by x, whose variation does not depend on that of another variable. Differentiate between the following terms. if you planted different types of seeds in each of the pots, trying to determine if soil type affected germination, you might find some types of seeds germinate faster than others. isn't a hypothesis what your predicting will happen? ThoughtCo, Jul. Suppose your hypothesis is: "Braking distance grows linearly with speed." When determining the scope of an experiment, you need to consider (check all that apply), What results to report Researchers suspected that high water temperature might cause bleaching, and they tested this hypothesis experimentally on a small scale (using isolated coral fragments in tanks). It's what changes as a result of the changes to the independent variable. She has taught English and biology in several countries. For example, when investigating the effect of study time of performance, the study time is the independent variable. So move out of the lab quickly.. What is the independent variable for the tadpole diet experiment ? An example of a dependent variable is depression symptoms, which depends on the independent variable (type of therapy). Direct link to Ivana - Science trainee's post There are no official rul, Posted 5 years ago. 1 What question can you ask yourself to determine the independent variable? This is different than the independent variable in an experiment, which is a variable . You test different brands of popcorn to see which bag pops the most popcorn kernels. The 'dependent' variable cannot change or grow unless something else is happening or influencing it. False-colored map representing sea surface temperatures around the globe as different colors. The variable that responds to the change in the independent variable is called the dependent variable. Panel 3: In the experimental (watered) pot, 9/10 seed sprout. The independent variable is the cause. Panel 1: Two identical pots are prepared. (2 Points) The independent variable in this experiment is the type of food that the tadpoles receive. According to the convention, in the example where the hypothesis is: " The braking distance grows linearly with the speed", what usually will be graphed on the y axis? *****Place the dependent variable on the Y-axis******* One way to remember the difference is to literally consider the independent variable as being independent, because it is the only thing that changes, as everything else in the experiment is controlled. Answer. Student test scores have no effect on the number of hours the students sleeps. A Refresher on Randomized Controlled Experiments. They were not orienting themselves with regard to any particular stimulus. One diet is a meat-based fish food, and the other is the traditional diet of boiled lettuce. What is the independent variable for the tadpole diet experiment? Answer (1 of 2): When you are running an experiment the independent variables are those you directly control or vary.The dependent variables are those you only measure or try to observe*. Scientific Method and Metric System lab charlie smith.docx Even managers who are willing to call for experiments often dont plan the experiment carefully enough. Use the data table to answer the question. teremana mana mobile locations Posted on July 3, 2022 Posted in euromillion million winning numbers generator western sydney university early entry Which of these topics belongs in a scientific paper? Christine graduated from Michigan State University with degrees in Environmental Biology and Geography and received her Master's from Duke University. - Tadpole size - Lab conditions - Species of tadpole - Diet. Thats where randomization comes in. This term can be confusing because statisticians use it to describe more than one concept. Accelerate your career with Harvard ManageMentor. This is where the rubber hits the road, of course. This cookie is set by GDPR Cookie Consent plugin. 21, 1401 . Tadpoles will be larger if fed a meat-based diet. Copyright 2023 WisdomAnswer | All rights reserved. For example, a scientist is testing the effect of light and dark on the behavior of moths by turning a light on and off. ThoughtCo. Why is the testing strategy important in the design of an experiment? happy time mediterranean restaurant; sweet and spicy vinegar sauce; steph curry all-star game. All kinds of businesses can conduct these experiments, and they necessarily dont need to be costly or time consuming they just need to be controlled and include an element of randomization., Lets start with the word experiment. An independent variable is defines as the variable that is changed or controlled in a scientific experiment. The following table shows the results of measuring the percentages of four bases in the DNA of several different organisms. One diet is a meat-based fish food, and the other is the traditional diet of boiled lettuce. diet tadpole size species of tadpole lab . The hypothesis is: "The braking distance grows linearly with speed". Suppose your hypothesis is "braking distance grows linearly with speed". What would be natural to do in the experiment phase if your hypothesis is: " The breaking distance grows linearly with speed"? Usually only one variable is measured and an experiment investigates how changing the independent variable affects the dependent . biology lab 1, 2 Flashcards | Quizlet The pots are placed near the window. What do you do in the hypothesis phase of the scientific method? Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Instead, it's a "best guess," and the scientist must test it to see if it's actually correct. What is the independent variable for the tadpole diet experiment? The independent variable is the amount of light and the moth's reaction is the, Dependent variable that Responds to change goes on the Y axis, Manipulated or Independent variable goes on the X axis. Independent and dependent variables always go on the same places in a graph. what is the independent variable for the tadpole diet experiment? Best answer. 1. What is another example of an everyday use of controlled experiments? Will goldfish eat daphnia? Explained by Sharing Culture Remember, the independent variable is what you control/change, and the dependent variable is what changes because of that. Independent Variable . What is the independent variable? In some cases, there is no good way to test a hypothesis using a controlled experiment (for practical or ethical reasons). Daz et al 2023 The amphibians of Cuba | Request PDF Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. What is the dependent variable for the tadpole diet experiment? Here are three experiments you can try at home. What is a control variable? They then collect and analyze data, seeing whether the patterns are actually present. Independent variables are the variables that the experimenter changes to test their dependent variable. What is the independent variable for the tadpole diet experiment? Read our guide to learn which science classes high school students should be taking. Biology. What ecologists most wanted to know, however, was whether water temperature was causing bleaching for lots of different coral species in their natural setting. There's nothing you or anything else can do to speed up or slow down time or increase or decrease age. Woodfrog tadpoles grow larger if fed a meat-based diet. How do you determine independent and dependent variables? There are two key variables in every experiment: the independent variable and the dependent variable. Direct link to 's post What is another example o, Posted 3 years ago. The amount of time studied is the independent variable, because it's what she changed, so it's on the x-axis. Its value is independent of other variables in your study. In order to make smart decisions at work, we need data. . Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. I need at least 15 pages in length done 10 pages should consist of valid references. It looks like the "seeds need water" hypothesis is probably correct! The dependent variable is the effect. 2. This makes it easy for you to quickly see which variable is independent and which is dependent when looking at a graph or chart. When formulating a hypothesis, it is important to determine the scope, then pick four or five factors to focus on. Practice Identifying the Independent Variable. So lets put it all together. With an experiment like the drill bit one, you may skip the pilot because of the cost and time involved in drilling a well. Constant variables are important because they ensure that the dependent variable is changing because, and only because, of the independent variable so you can accurately measure the relationship between the dependent and independent variables. what is the independent variable for the tadpole diet experiment? Direct link to tyersome's post Nope, you can have multip. The independent variable is what you change, and the dependent variable is what changes as a result of that. All rights reserved. Note that the number of wells here is pretty small compared with an experiment, for example, where youre showing 1,000 potential customers a new marketing campaign. Removal of control would affect results. By . Direct link to Yvonne's post In the case of environmen, Posted 5 years ago. $$ Many randomized controlled experiments are done in a lab because its easier to control things in a laboratory setting, says Redman. A. Similarly, an ecologist studying the effects of rainfall can't make it rain in one part of a continent, while keeping another part dry as a control. These cookies will be stored in your browser only with your consent. Fortunately, we make learning these concepts easy! In your experiment you keep all other factors , such as tadpole density per pan , temperature , pH , and the amount of food the same . It is called independent because its value does not depend on and is not affected by the state of any other variable in the experiment. What is the independent variable for the tadpole diet experiment? Now let's make a strategy. Length of the experiment b. They probably do not eat tadpoles in large quantities, although they might eat frog eggs and an occasional tadpole. In the tadpole diet experiment, it would be sufficient to test only one single pan of tadpoles that were fed lettuce, and only one single pan of tadpoles fed meat. The fraction of seeds that sprout is the dependent variable. The dependent variable goes on the y-axis, or vertical axis. A change in the independent variable directly causes a change in the dependent . But as far as Redman knows, theres no well-drilling lab, so you do the best you can. The dependent variable goes on the y-axis, or vertical axis. Direct link to yen nguyen's post Yep! Thanks to that we guarantee high level of project management, consulting and services. This is an example of kinesis Dependent and Independent Variables. Number of bacteria c. generation Reproduction rate d. For this type of study, the only choice is an instrument that queries past diet. What happened to the tenth seed? In your experiment you keep all other factors, such as tadpole density per pan, temperature, pH, and the amount of food the same. Yes, but the hypothesis has to be backed up by your experiment, and predicted outcome. Either the scientist has to change the independent variable herself or it changes on its own; nothing else in the experiment affects or changes it. Which factor will you vary in order to test the hypothesis? Below are overviews of three experiments, each with their independent and dependent variables identified. The dependent variable (height) depends on the independent variable (age). The College Entrance Examination BoardTM does not endorse, nor is it affiliated in any way with the owner or any content of this site. Wellit turns out I forgot to water the seeds. Check out our top-rated graduate blogs here: PrepScholar 2013-2018. As one of the first partners in Poland we implemented VersaStack the worlds first integrated infrastructure based on IBM Storwize and Cisco UCS. How many phases make up the scientific method? If you're still having a hard time understanding the relationship between independent and dependent variable, it might help to see them in action. Direct link to kelly smith's post why not test different ac, Posted 4 years ago. You want to see if the meat-based diet will be associated with an increase in the average weight of the tadpoles. This is important because to judge the results of your experiment, you have to ask compared to what? You dont just start drilling with the new bit and decide its better. You have to compare it against a control group in this case, the 15 wells youre digging with the old bit, which is your baseline. The only difference between your control and experimental groups is the type of food the tadpoles receive. Which is true of the independent variable of an experiment? What is the independent variable for the tadpole diet experiment? Controlled, in this sense, means putting restrictions in place so that certain variables dont impact the outcome of your experiment. Or if you accidentally drill 15of the easiest-to-dig wells with the new bit, you dont really know whether its better. Either the scientist has to change the independent variable herself or it changes on its own; nothing else in the experiment affects or changes it. A researcher can control the number of hours a student sleeps. The independent variable for the tadpole diet experiment are the amount of food given to the tadpole, temperature, pH, density because an independent variable is defined as the variable that is changed or controlled in a scientific experiment .It represents the cause or the reson for an outcome (dependent variable) that is increase in the average weight. The photo below shows a bleached coral in front and a healthy coral in back. Or if the researcher only relies on the parents' reporting data from birth to the current age that the child is involved in testing a hypothesis? The cookie is used to store the user consent for the cookies in the category "Performance". As mentioned above, bleaching is when corals lose the photosynthetic microorganisms that live inside of them, which makes them turn white. Scientists test hypotheses by making predictions: if hypothesis, When possible, scientists test their hypotheses using controlled experiments. What are Independent and Dependent Variables? - Simply Psychology So in a clinical drug trial, you might be worried that the participants diet will affect whether the medication is effective. Let's say you get the following results: How do the sprouting seeds know to go up if they don't know which way the light is? In your experiment you keep all other factors, such as tadpole density, temperature, pH, and the amount of food, constant. In contrast, the dependent variable in an experiment is the response that's measured to see if the treatment had an effect. Its value depends on changes in the independent variable. Its value is known to the researcher, unlike the dependent variable whose values are yet to be determined through the experiment. Identify independent variables: Imagine that you wish to compare the two different diets that will be fed to tadpoles raised in a lab. For example, in the example above, if there were no constants and you used different amounts of water, different types of plants, different amounts of fertilizer and put the plants in windows that got different amounts of sun, you wouldn't be able to say how fertilizer type affected plant growth because there would be so many other factors potentially affecting how the plants grew. by CT Diamond. In this study, group of rats was fed with their standard diet while the other three groups were fed with a diet supplemented with blueberry, strawberry, and spinach powder, respectively . The group that receives the treatment in an experiment (here, the watered pot) is called the, The factor that is different between the control and experimental groups (in this case, the amount of water) is known as the. An independent variable is defines as the variable that is changed or controlled in a scientific experiment. In your experiment you keep all other factors, such as tadpole density per pan, temperature, pH, and the amount of food the same. B) The average weight for groups of bullfrog tadpoles is higher if density of tadpoles per gallon of . Let's say you did the same experiment as the Australian researchers, but also had each sample at a different temperature. The sooner in the process you collaborate, the more likely youll be able to gain from each others experience. Plants are PHOTOTROPIC I.e, they sense light and act accordingly. This cookie is set by GDPR Cookie Consent plugin. hbspt.cta._relativeUrls=true;hbspt.cta.load(360031, '21006efe-96ea-47ea-9553-204221f7f333', {"useNewLoader":"true","region":"na1"}); These recommendations are based solely on our knowledge and experience. In that case, a scientist may test a hypothesis by making predictions about patterns that should be seen in nature if the hypothesis is correct. The three most common cementing agents in sedimentary rocks are? When researchers are interested in whether past diet as an independent variable may affect a dependent variable such as health status, they conduct a [glossary term:] retrospective study (also known as a case-control study) . Similarly, in the drilling experiment, you might want to be sure you account for the expected hardness of the rock, so you may create 15pairs of wells based on how difficult you expect theyll be to drill. Determine the magnitude of the charges. Remember, the independent variable is the one the experimenter controls to measures its effect on the dependent variable. analysis, Science is about coming up with a hypothesis and, analyze your data and place it on a graph. 3 Which is true of the independent variable of an experiment? ***Results. In a psychology experiment, researchers study how changes in one variable (the . Changes to each of these independent variables cause the dependent variables to change in the experiments. Place the 4 phases of Scientific method in order: You do not need to pause to record your data as you perform your experiment. Here is an example of an experiment: Researchers examined the effect of pesticides on tadpole limb development. (2006-42) A scientist designed an experiment to test the effect of temperature on bacterial growth. What is the independent variable? 2. B. Tadpole size will be unpredictable if fed a meat-based diet. The dependent variable is the effect. Researchers are trying to determine if changes to . The only difference between your control and experimental groups is the type of food the tadpoles receive . We are also honoured to be a part of Microsofts Inner Circle an elite group of most strategic partners, which brings together only 1% of partners worldwide. One diet is a meat-based fish food, and the other is the traditional diet of boiled lettuce. What is the independent variable for an experiment comparing different tadpole diets? Experts are tested by Chegg as specialists in their subject area. The only difference be-tween your control and experimental groups is the type of food the tadpoles receive. Because other researchers must be able to repeat the experiment in order to check the results. For Cisco an innovation is a key factor for productivity growth. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. and then to collect data. Usually in an experiment, youre trying to learn something about one, or at most a few, independent variables, but a lot of other factors can get in the way, says Redman. In your experiment you keep all other factors, such as tadpole density per pan, temperature, pH, and the amount of food the same. Interested in science? Are you interested in understanding whether the new bit works in all of your wells or just specific types of ones? which question can you ask yourself to determine the dependent variable of an experiment? You want to decide if the new diet will be associated with an increase in the average weight of the tadpoles. What do you do in the lab smart experiment phase? Download it for free now: hbspt.cta._relativeUrls=true;hbspt.cta.load(360031, '688715d6-bf92-47d7-8526-4c53d1f5fe7d', {"useNewLoader":"true","region":"na1"}); hbspt.cta._relativeUrls=true;hbspt.cta.load(360031, '03a85984-6dfd-4a19-93c8-5f46091f5e2b', {"useNewLoader":"true","region":"na1"}); Need more help with this topic? When graphing these variables, the independent variable should go on the x-axis (the horizontal axis), and the dependent variable goes on the y-axis (vertical axis). The only difference between your control and experimental groups is the type of food the tadpoles . In icare graduate program. To identify the dependent variable ask yourself, What is actually being measured in the experiment? For example, to test a hypothesis that eating carrots improves vision, the experimenter would manipulate whether or not subjects ate carrots. The value of the dependent variable is measured. The only difference between your control and experimental groups is the type of food the tadpoles receive. Question 3 Imagine that you wish to compare two different diets that will be fed to tadpoles raised in a lab. what is the independent variable for the tadpole diet experiment? hbspt.cta.load(360031, '4efd5fbd-40d7-4b12-8674-6c4f312edd05', {}); Have any questions about this article or other topics? Analyze the results, looking for both planned results and keeping your eyes open for unexpected ones. ***Drop different balls from a fixed height. Here control means the current way of doing things (e.g., the old bit) and treatment means the new way of doing things (e.g., the new bit).