Chapter 1, Problem 2TYK

Design a (hypothetical) experiment that adheres to the Scientific Method. Be sure to include all the necessary requirements at each step and give examples at all of the steps. Start with an observation, whether it's real or made up, state the null hypothesis, and design an experiment (including an experimental and control group, random sampling, sample size, and reproducibility) that will allow the student to reject or fail to reject the hypothesis, and state (hypothetical) 'actual' results and the appropriate conclusion to draw from those results.

What is a null hypothesis in experiments? How is a null hypothesis used in science experiments? Note: Provide an answer with 150-200 words

You are designing an experiment to test the following hypothesis: Temperature affects the ability of students to think clearly, and, therefore, students in a hotter room will have lower exam scores than students in a cooler room. For your experiment, list the following Sample size Independent variable Dependent variable Control group Experimental group Standardized variables How will you ensure that you have a random sample?

A useful hypothesis typically accomplishes these two things: Group of answer choices it is falsifiable and clear it clearly establishes a null hypothesis and it generates a testable prediction it can be easily disproved and will be considered a theory if not disproved it frames an experiment that can shed light on the observation and guides design of the experiment

(1 question with multiple steps please answer) Identify the component characteristics of a scientific investigation Suggest alternative hypotheses that could be tested by the design Evaluate the validity of conclusions based on the given results Suggest ways to improve the experimental design Define and recognize examples of the experimental group, experimental variable, control group, control variable, independent variable, and dependent variable, and data

Scientifically-testable statements that can be supported or falsified by experimentation are called

Which of these factors is commonly manipulated during an experiment?      independent variable     dependent variable     controlled variable     continuous variable When carrying out an experiment, a scientist will observe changes in which factor?      confounding variable     dependent variable     controlled variable     independent variable  Which of these factors remains intentionally unchanged in an experiment?      controlled variable     continuous variable     independent variable     dependent variable

Partway through my first semester in college, I tried drawing and labeling pictures as a study tool, and my grades on multiple choice exams improved. I decided to design an experiment to see if this same trick works more generally. I split up students into two groups in my LIFE 102 class: Group A were given the PowerPoint slides for lecture and asked to review the material for their weekly quiz based on the lecture notes only. Group B were given the same PowerPoint slides during lecture and asked to draw the content visible on the slides during lecture in their notebooks. I asked students to share their notes with me so I could confirm which students drew their own pictures and which students used lecture notes only. Then, I evaluated their quiz grades.     Write an alternative hypothesis and a null hypothesis for my experiment. Then write a prediction for each of these hypotheses.   Label them clearly, as in this structure:   Alternative Hypothesis: [general statement of a phenomenon…

In a controlled experiment all of the variables are kept the same in order to contsistent. there is only one variable there is change for these kind of studies and it is known as       variable