Unit 1 Experimental Design IV Flashcards
Testable question
A testable question is a question that can be answered by designing and conducting an experiment.
Non-testable question
Questions that cannot be answered by direct observation or by evidence gathered through experimental inquiries.
Quantitative
Relating to an amount that can be measured. (number)
Qualitative
Relating to the nature or standard of something. (description)
Trials
A tryout or experiment to test quality, value, or usefulness.
Observation
The action or process of carefully watching someone or something.
Empirical evidence
Empirical evidence is any information you can collect through the processes of observation or investigation.
Data
Data is any collection of facts, statistics, or information gathered and stored for various purposes.
Model in science
A representation of an object, organism, system, or process.
Analogy
An analogy is a comparison between two things that shows how they are in some sense structurally similar.
Prototype
The original or model on which something is based or formed.
Hypothesis
An educated guess as to what will happen during your experiment.
Variable
Any factor that can be controlled, changed, or measured in an experiment.
Procedure
The procedure is a detailed, step-by-step list of everything you will do in your experiment, including the materials and methods you will use.
Precision
Precision refers to the closeness of two or more measurements to each other.
Accuracy
How close a measurement is to the true or accepted value.
Scientific method
The process of observing, asking questions, and seeking answers through tests.
Control
An element that remains unchanged or unaffected by other variables.
Constant
The part that doesn’t change during the experiment.
Predict
A guess, sometimes based on facts or evidence, but not always.
Infer
The process of drawing conclusions based on evidence and reasoning.
Independent variable
A variable that stands alone and isn’t changed by the other variables you are trying to measure.
Dependent variable
The variable that is being measured or tested in an experiment.
Manipulated variable
A factor that is purposefully and specifically changed by the experimenter.
Responding variable
Something that “responds” to changes you make in an experiment
Sample size
The number of participants or observations included in a study - population.
Validity
Scientifically accurate information that is used in an unbiased way to convey a biological idea.
Trends in data
The general change in a variable with time.
Correlation
A statistical measure of the relationship between two variables.
Variability
The tendency at which traits in that population may vary.
Mass
The amount of matter or substance that makes up an object.
Volume
The amount of space the object takes up.
Weight
It is the measure of the force of gravity acting on a body.
Percent
A number that tells us how much out of 100.
Rate
A quantity calculated with regard to another measured quantity.
Ratio
A ratio compares one thing to another thing.
Line graph
A line graph is used to display information which changes over time. It is plotted on a graph as a series of points joined with straight lines.
Bar graph
A type of graph in which each column represents a categorical variable.
Pie graph
A type of graph that represents the data in the circular graph.
Scatter plot
A scatter plot uses dots to represent values for two different variables.
Claim
A statement or conclusion that answers the original question/problem.
Evidence
Anything that can be used to prove something.
Reason
An explanation for why something is they way it is or why a particular action was taken.
Theory
A broad explanation for events that is widely accepted as true.
Bias
Any factor that causes distortion of genetic predictions.
