Experimental Design

Question 1

Quantitative

Answer 1

quantitative research is the systematic empirical investigation of observable phenomena via statistical, mathematical, or computational techniques.

Question 2

Qualitative

Answer 2

Measuring something without a value

Question 3

Observation

Answer 3

Observation consists of receiving knowledge of the outside world through our senses, or recording information using scientific tools and instruments. Any data recorded during an experiment can be called an observation.

Question 4

Inference

Answer 4

Making a judgment about an observation

Question 5

Variable

Answer 5

A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled.

Question 6

Independent Variable

Answer 6

An independent variable is defines as the variable that is changed or controlled in a scientific experiment. It represents the cause or reason for an outcome. Independent variables are the variables that the experimenter changes to test their dependent variable.

Question 7

Dependent Variable

Answer 7

a variable (often denoted by y ) whose value depends on that of another.

Question 8

Constant

Answer 8

A quantity that is unknown but assumed to have a fixed value in a specified mathematical context.

Question 9

Control

Answer 9

A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable.

Question 10

Control Group

Answer 10

the standard to which comparisons are made in an experiment.

Question 11

Experimental Group

Answer 11

a group of subjects who are exposed to the variable under study

Question 12

Reliability

Answer 12

Reliability is the degree to which an assessment tool produces stable and consistent results.

Question 13

Repeat Trials

Answer 13

Repeated trials are where you measure the same thing multiple times to make your data more reliable.

Question 14

Hypothesis

Answer 14

A hypothesis is used in an experiment to define the relationship between two variables

Question 15

Materials

Answer 15

the scientific study of the properties and applications of materials of construction or manufacture

Question 16

Scientific Method

Answer 16

principles and procedures for the systematic pursuit of knowledge involving the recognition and formulation of a problem, the collection of data through observation and experiment, and the formulation and testing of hypotheses.

Question 17

Data Tables

Answer 17

Any display of information in tabular form, with rows and/or columns named.

Question 18

Graph

Answer 18

a diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles.

Question 19

Results

Answer 19

an item of information obtained by experiment or some other scientific method; a quantity or formula obtained by calculation.

Question 20

Conclusion

Answer 20

the end or finish of an event, process, or text.