Instruments and Writing Hypotheses
We use various instruments to measure certain characteristics of objects, including length, volume, mass, temperature, and time.
Now that we know how to collect data, we need to design an experiment to collect and analyze this data. We will be using an experimental design (EDD), which looks like this:
There are seven parts to an EDD: title, hypothesis, independent variable (IV), levels of IV, repeated trials, dependent variable (DV), and constants.
Description of each of the terms in detail:
Title: describes the purpose of the experiment
The Effect of IV on DV
Hypothesis: what you propose is going to happen after your experiment is completed
If the IV is ____, then the DV will _____.
Independent Variable (IV): the variable that you change
Levels of IV: different amounts or sizes of the IV
Repeated Trials: number of times you will complete the experiment with each level of the IV
Dependent Variable (DV): data that you will collect
Constant: variables or components of the experiment that will stay the same throughout the entire experiment
Now we will practice making EDDs by conducting a sample experiment!
We will be testing the effects of time spent on phone before sleep on the amount of time slept that night. Now we can fill out our EDD.
Now that we learned all this new information, let's try a quiz!