Totten - Variables, Observations, Inferences Question Preview (ID: 38362)
Distinguish Between Independent And Dependent Variables, Controls And Different Types Of Observations.
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In an experiment, the one variable that you change to see if it CAUSES something to happen.
a) Dependent Variable
b) Independent Variable
c) Control
d) Observation
In an Experiment, the variables you keep the SAME for all groups.
a) Control Variables
b) Independent variables
c) Dependent variables
d) Inferences
In an experiment, what you MEASURE to see if there was an EFFECT
a) Independent Variable
b) Dependent Variable
c) Control Variable
d) Observation
What is the Independent variable in this hypothesis? IF students go to bed by 9 PM, THEN their test scores will increase.
a) 9 PM bedtime
b) test scores
c) # of students
d)
What is the independent variable in this hypothesis? IF teachers give homework time in class, THEN the # of completed assignments will increase.
a) # of completed assignments
b) homework time given in class
c) # of teachers
d)
What is the DEPENDENT VARIABLE? IF students say GOOD MORNING to teachers, THEN the # of times teachers smile will increase.
a) # of teacher smiles
b) students saying Good Morning
c) # of students
d)
Which variable is a control? In an experiment, Mrs. Totten wanted to see if giving students a peppermint before class would increase the # of minutes students focused in class. She gave 20 students the same kind of mint.
a) # of minutes spent focusing
b) giving the mint
c) used the SAME kind of mint for all students
d)
Which is a good INFERENCE for these observations? You see marching bands, fire trucks, kids in a group doing cartwheels down the main street of town.
a) You are at school.
b) You are at a parade.
c) You are at the doctor's office.
d)
A possible explanation for a set of observations or answer to a scientific question.
a) Observation
b) Variable
c) Hypothesis
d)
A factor that can change in an experiment.
a) Control
b) Inference
c) Variable
d) qualitative
facts, figures, and other evidence gathered through observations
a) data
b) variables
c) observations
d) inferences
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