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21 Cards in this Set

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Science is a process of ...
gathering knowledge about the world
Three steps of the science process are...
asking a question
making and testing a hypothesis
providing a systematic approach to see if hypothesis is correct or not
4 Goals of science
Understand
Describe
Explain
Predict
Two scientific research methods.
Empiricism
Experiment
What is a tool for determining the nature of relationship between two variables?
an experiment
The independent variable is the variable that is ____.
manipulated by the experimenter
We observe the effects of the ____ on the ____.
independent variables
dependent variables
The number of conditions equals the ____.
levels of independent variables
The dependent variable is the variable that is ____.
Examples?
measured
speed, accuracy, time
A change in the dependent variable probably a result of what?
That there was a change in the independent variable
What are some experimental controls?
script instructions
sound proof testing rooms
subjects tested alone
formal testing session
We should always use ____ to increase reliability?
group data
What are the two types of reliability?
internal
external
What is an example of an internal reliability problem?
performer does not always perform the same action twice in the same way
What are the two types of validity?
internal
external
What is internal validity?
the extent to which the test measures what it intends to measure
What is external validity?
the extent to which the findings could be generalized to a larger group or other contexts
Why is validity not too important in motor learning?
arbitrary tasks
well controlled study
focus not on task, but the variables that affect performance and learning
What are the two types of experimental designs?
independent group design
repeated measures design
In independent group design, the #____= #____. What does this mean?
# group = # condition
10 people split in half, one group only tested on one IV, the other only tested on another IV
In repeated measures design, the #____= #____. What does this mean?
# repetitions = # conditions
10 people in group, all people do both IV's