Chapter 1 – Investigating scientifically

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Presentation transcript:

Chapter 1 – Investigating scientifically FLASHCARDS Chapter 1 – Investigating scientifically

The variable that is deliberately changed to determine its effect

The variable that is deliberately changed to determine its effect Independent variable The variable that is deliberately changed to determine its effect

Dependent variable

The variable that changes in response to the independent variable

Variables that are kept the same across the experiment

Variables that are kept the same across the experiment Controlled variables Variables that are kept the same across the experiment

Experimental group

The groups/trials that have the independent variable manipulated Experimental group

The groups/trials that do not have the independent variable manipulated. The comparison groups or the “norm”

Control group The groups/trials that do not have the independent variable manipulated. The comparison groups or the “norm”

Repetition

Repeating the same experiment many times Repetition

Having a large sample size or number of trials

Having a large sample size or number of trials Replication Having a large sample size or number of trials

Testing what it is supposed to test Testing what it is supposed to test. Having a method which controls all variables and tests the hypothesis

Validity Testing what it is supposed to test. Having a method which controls all variables and tests the hypothesis

The extent to which an experiment gives the same results each time The extent to which an experiment gives the same results each time. Increased by repetition and replication

Reliability The extent to which an experiment gives the same results each time. Increased by repetition and replication

Quantitative data

Data that can be measured. Uses numbers Quantitative data

Data that cannot be measured. Data that requires the use observations

Data that cannot be measured. Data that requires the use observations Qualitative data Data that cannot be measured. Data that requires the use observations

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