Experimental Design

Select all of the following which involve the manipulation of variables.

• case study

• randomized control trial

• quasi experiment

• cross-sectional study

Tags

NGSS.HS-LS1-3

A researcher is performing a study which examines a group of criminal fingerprints and a group of non-criminal fingerprints. This is an example of:

• a comparative investigation

• a descriptive investigation

• an experimental investigation

• none of the above

Which of the following statements is NOT true about descriptive research?

• it does not try to quantify relationships between variables

• it involves intervention and manipulation of variables

• it describes an overall picture of what is happening

• it can be accomplished through a case study

An engineer asks the questions, "does the product solve the problem," when evaluating a new product design. Which element of evaluating an engineering design has the enginerr addressed with this question?

• function

• efficienty

• safety

• commercial viability

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Which of the following experimental design elements may include things such as temperature, pressure, technique and chemical purity?

• blinding

• sampling

• controls

• randomization

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

True/False: All experimental design elements remove bias from an investigation.

Which of the following should NOT be considered when evaluating an engineering design?

• commercial viability

• efficiency

• blinding

• function

Tags

NGSS.HS-ETS1-3

Which of the following would NOT be considered a form of experimental investigation?

• quasi-experimental

• case study

• randomized control trial

• cross-sectional study

True/False: A case study has no control group to compare outcomes.

True/False: A randomized-control trial involves a carefully planned intervention to control groups.