# How many trials (replications) will the experiment be repeated for each condition of the independent variable?

How many trials (replications) will the experiment be repeated for each condition of the independent variable?

Biology This is only the introduction of the paper Questions (choose only one) 8. Chitin consume Black Pine seaweed. Would the Chitin diet change if the distribution of Black Pine seaweed changed? In other words, would it make a difference if the Black Pine seaweed were in one large group, two smaller groups, or randomly distributed? 9. If the Acorn Barnacle population were to increase, would that result in Green Crabs eating fewer Gooseneck Barnacles? Advice on Experimental Design Basic experimental design questions What is the question that you have been assigned? Can you propose a testable hypothesis that addresses that question? What is your rationale for that hypothesis? What will you manipulate? (One independent variable) What will you measure? (One or two dependent variables) What will be the quantities or conditions of the independent variable? (Minimum of three conditions) How many trials (replications) will the experiment be repeated for each condition of the independent variable? (Minimum of three trials for each condition) How long will the experiment be run for each trial? The research questions have all been designed so that there is one independent variable and one dependent variable. The connection between the independent and dependent variables is not always a direct one. Examine the various predation and/or competition links involved in your question and think about possible outcomes. Then, make a prediction (i.e., a hypothesis) based on your question. There needs to be a rationale for the hypothesis. A good hypothesis should be simple. A good hypothesis has to be testable and falsifiable. Ensure that the simulation will let you manipulate the independent variable as needed and measure the dependent variable. Don’t worry if your hypothesis is right or wrong. That’s what the experiment is designed to test. If at the end you have to reject your hypothesis, so be it. You don’t lose points because your hypothesis turned out to be untrue. Once you have a testable hypothesis and know your independent variable and dependent variable, you need to report how you are actually going to carry out the research. Note: For the first paper (Introduction, Hypothesis, and Methods), you simply have to introduce the nature of the environment you are working in, report your hypothesis, and explain how you intend to test it. You do not have to actually do the experiment and report any results yet. That comes later when you write the Results and Discussion paper.

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