Nas2 Exam– Questions With Accurate Solutions
Order and describe the steps of the Scientific Method Correct Answer -
Observation/Question
Research
Hypothesis: predict the outcome of the problem.
Experiment: develop the procedure to test the hypothesis.
Collect Data: record the results of the experiment
Analysis: examine the data
Conclusion: compare hypothesis to the experimental results
Describe relevant terms of experimental design Correct Answer -
hypothesis
theory
sample size
trials
placebo
indep. variable
dep. variable
constants
standardized variables
Hypothesis Correct Answer - an assumption made before research
Theory Correct Answer - a principle to explain a phenomena based on
already supported data
Sample size Correct Answer - number of participants or observations
included in a study
-determines precision (how close measurements are to each other) of our
estimates
-determines the power of the study to draw conclusions
-Denoted by Z depends on the distribution type and confidence interval.
trials Correct Answer - -trails show
, -intervention trials (ie clinical trial): find out more about a intervention or
treatment
-observational trials: researcher observe the effect of a risk factor diagnostic
test, treatment or other intervention without trying to change who is or isn't
exposed to it.
Placebo Correct Answer - -a substance that has no therapeutic effect,
and it is used as a control in testing new drugs
Indep. Variable Correct Answer - can be manipulated by the
experimenter but not by other variables.
For example, in an experiment looking at the effects of studying on test scores,
studying would be the independent variable.
Dep. variable Correct Answer - the variable being tested and measured
in an experiment, and is 'dependent' on the independent variable.
An example of a dependent variable is depression symptoms, which depends
on the independent variable (type of therapy).
Constants Correct Answer - Experimental constants are values that do
not change either during or between experiments.
Standardized variables Correct Answer - The standardized variables in
an experiment are designed to always be the same.
For example, in an experiment determining whether or not age (an
independent variable) has an effect on ease of weight loss (the dependent
variable), all other aspects of the experiment other than age must be the same
between groups.
Define anatomy and physiology Correct Answer - anatomy: the study of
the structure of the human body and how it is organized.
physiology: the study of functions of different body parts
Order and describe the steps of the Scientific Method Correct Answer -
Observation/Question
Research
Hypothesis: predict the outcome of the problem.
Experiment: develop the procedure to test the hypothesis.
Collect Data: record the results of the experiment
Analysis: examine the data
Conclusion: compare hypothesis to the experimental results
Describe relevant terms of experimental design Correct Answer -
hypothesis
theory
sample size
trials
placebo
indep. variable
dep. variable
constants
standardized variables
Hypothesis Correct Answer - an assumption made before research
Theory Correct Answer - a principle to explain a phenomena based on
already supported data
Sample size Correct Answer - number of participants or observations
included in a study
-determines precision (how close measurements are to each other) of our
estimates
-determines the power of the study to draw conclusions
-Denoted by Z depends on the distribution type and confidence interval.
trials Correct Answer - -trails show
, -intervention trials (ie clinical trial): find out more about a intervention or
treatment
-observational trials: researcher observe the effect of a risk factor diagnostic
test, treatment or other intervention without trying to change who is or isn't
exposed to it.
Placebo Correct Answer - -a substance that has no therapeutic effect,
and it is used as a control in testing new drugs
Indep. Variable Correct Answer - can be manipulated by the
experimenter but not by other variables.
For example, in an experiment looking at the effects of studying on test scores,
studying would be the independent variable.
Dep. variable Correct Answer - the variable being tested and measured
in an experiment, and is 'dependent' on the independent variable.
An example of a dependent variable is depression symptoms, which depends
on the independent variable (type of therapy).
Constants Correct Answer - Experimental constants are values that do
not change either during or between experiments.
Standardized variables Correct Answer - The standardized variables in
an experiment are designed to always be the same.
For example, in an experiment determining whether or not age (an
independent variable) has an effect on ease of weight loss (the dependent
variable), all other aspects of the experiment other than age must be the same
between groups.
Define anatomy and physiology Correct Answer - anatomy: the study of
the structure of the human body and how it is organized.
physiology: the study of functions of different body parts
