NAS 2 TCC Full EXAM Questions and Answers Best Graded A+

NAS 2 TCC Full EXAM Questions and
Answers Best Graded A+

purpose of scientific method - Exact Answer: guide researchers in
planning, conducting, and interpreting research studies


order of scientific method - Exact Answer: observation, question,
hypothesis, prediction, experiment, conclusion


Steps of the Scientific Method - Exact Answer: Ask a Question
Do Background Research
Construct a Hypothesis
Test Your Hypothesis by Doing an Experiment
Analyze Your Data and Draw a Conclusion
Communicate Your Results


Hypothesis - Exact Answer: A testable prediction, often implied by a
theory


Theory - Exact Answer: A hypothesis that has been tested with a
significant amount of data

, NAS 2 TCC Full EXAM Questions and
Answers Best Graded A+

sample size - Exact Answer: the number of times a measurement is
replicated in data collection


Trials - Exact Answer: the number of times an experiment is repeated


Control - Exact Answer: In an experiment, the standard that is used for
comparison


Placebo - Exact Answer: something which has a positive mental effect,
but no physical effect


independent variable - Exact Answer: The experimental factor that is
manipulated; the variable whose effect is being studied.


dependent variable - Exact Answer: The outcome factor; the variable
that may change in response to manipulations of the independent
variable.


Constants/Controlled Variables - Exact Answer: the conditions of the
experiment that we keep the same.