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Variables --SKIN CANCER

Step 2-: Identify the independent Variable .

Independent Variable: Indicate the Variable Name and Variable Label

Step 3: Identify the dependent Variable and it’s level of measurement.

Dependent Variable: Indicate the Variable Name and Variable Label

Step 4: Map out your proposed hypothesis.

Independent Variable

Effect

Dependent Variable

Step 5: Describe the hypothesis. What do you expect? Why do you want to study it?

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Related questions

Psychology of adulthood and aging;

Here is a question related to adulthood/aging that you think science can’t answer:

Does age determine adulthood?

Then you will try to demonstrate how science could answer a related question. (Change the question to): When should a person be considered an adult?

Objectives:

Students should be able to speculate as to why two variables might be correlated, identify what a correlation between variables is not telling us, and anticipate what kind of research studies could further clarify a correlation between variables.

Students should be able to define operationalization, hypothesis, and be able to describe the scientific method by which psychologists study adulthood and aging.

a-First psychological variable

b-Give it a label

c-Briefly describe this variable.

Describe how this variable can be operationalized (that is, describe exactly how you determine which category or which value of the variable applies to a particular person or situation).

Second variable that you believe is related to your first variable.

a-Give it a label.

b-Briefly describe this variable.

c-Describe how this variable can be operationalized.

Once the variables are defined, the next step is to predict the relationship between these two variables by writing a hypothesis. A hypothesis is a prediction about the relationship between two or more variables. For now, assume that there is a causal relationship between the two variables even if it would be impossible or unethical to test a causal hypothesis. This means that changing a person’s score on one of the variables (the independent variable) would cause the person’s score on the other variable (the dependent variable) to change. For example, you might say, “Increasing the amount of violent television that a person watches will cause that person to exhibit more aggressive behaviors.”

Directions: Read the paper entitled “Effect of environmental pH on chain length of Lactobacillus bulgaricus” by Rhee and Pack, which has been uploaded to Blackboard in the Homework folder, and answer the following questions. Total points: 10 1. Which scientific approach (of the two that were adapted from Aristotle’s principles) does this study entail? [1] 2. What is the hypothesis, if this study has one? If there is no hypothesis, what is the primary observation or description of nature? [2] 3. Specify the independent variable. If there is no independent variable, answer “none.” [2] 4. Specify the dependent variable. If there is no dependent variable, answer “none.” [2] 5. List and specify any control variables. If there are no control variables, answer “none.” [3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC294746/pdf/jbacter00573-0007.pdf This site above is the article. please answer all !

Lab Topic 1: The Process of Science

Introduction

1. Which of the following questions would you consider appropriate scientific questions that can be tested using the scientific method? For the statements that can be tested using the scientific method, explain how your experiment would be set up. Explain the different steps in the scientific method as they relate to this statement.

a. Does the pH of the soil affect the color of hydrangea flowers?

b. What properties of the soil influence the color of hydrangea flowers?

c. Do hydrangeas look more beautiful when grown in the right soil?

d. Was The Day After Tomorrow a better movie than Terminator?

e. Does grass require fertilizer in order to grow?

2. Read this hypothesis and answer the questions below:

Plants kept closer to windows grow larger than plants kept several feet away from windows.

a. Indicate the dependent variable:

b. Indicate the independent variable:

c. List 3 other variables that must be kept constant in this experiment (the control variables).

d. Write a prediction based on the above hypothesis.

Exercise 1.1

Take a Deep Breath

Students will need to take a picture of themselves or their group walking up and down on the step or doing other exercise. Include a note with your name and date on an index card in the picture. Insert picture here:

1. Identify the following in the experimental design. You will need to refer to the protocol to answer this question.

a. Independent variable:

b. Dependent variable:

c. Experimental dataset:

d. Control dataset:

e. Hypothesis:

2. Fill in the data for each individual in your group for the Breath experiment.

Length of time breath can be held (seconds)

Individual Tested

Resting

After 1 minutes of exercise

After 5 minutes of exercise

Average (take the average for each column)

3. Look at the averages for all individuals in your group. Was the hypothesis you stated in the previous question supported by the “average data”? Explain your answer!!!

4. Now look at the data for each individual separately. Was there data for anyone in your group that did not support the hypothesis? If yes, explain whythis could be.

5. How many replicates did your group have?________________ Why is it good to have more than one replicate?

Exercise 1.2

Let’s Graph

In this exercise, you will be graphing the data that you collected in exercise 1.1.

1. In exercise 1.1, you identified the independent and dependent variables. Which one goes on the X axis of the graph and which goes on the Y axis?

2. Will you make a line or a bar graph of your data? Explain why you chose this type of graph.

3. You will need to use excel to generate a graph of your data. On this graph, you will need to label the title, independent variable, dependent variable and possibly the legend. You will need to select an appropriate scale so the data is spread out on the graph.

*Consult with your instructor to see how he/she would like for you to submit your graph. You might work on it in class and submit it through D2L or you might submit it at a different time. If you are taking the online version of the class, you will need to use Excel or word to make the graph.

Exercise 1.3

You will need to get the data under exercise 1.3 in the protocol sheet to complete these sections.

1. What is the dependent variable?

2. What is the independent variable?

3. Which, if any, of these individuals has diabetes? ___A or B ___?

4. What data do you have to support your hypothesis?

5. Construct a graph showing the time after eating each group had the greatest blood glucose levels.

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