Mod 1 Lesson 9

Question 1

confounding variable

Answer 1

a condition that is not held constant across experimental and control groups that could affect the results

Question 2

control group

Answer 2

serves as a basis for comparison and controls for chance factors that might influence the results of the study — by holding such factors constant across groups so that the experimental manipulation is the only difference between groups

Question 3

data analysis

Answer 3

the process of transforming, analyzing, and modeling data to create useful statistics, easier to understand and apply numbers, and hypothesis supporting data and conclusions

Question 4

dependent variable

Answer 4

the variable that the researcher measures to see how much effect the independent variable had

Question 5

experiment

Answer 5

a procedure carried out under controlled conditions in order to discover an unknown effect, and to test or establish a hypothesis

Question 6

experimental group

Answer 6

a group designed to answer a research question

Question 7

hypothesis

Answer 7

a suggested explanation for an observation, which can be tested

Question 8

independent variable

Answer 8

a variable that is influenced or controlled by the experimenter

Question 9

raw data

Answer 9

data that has not been processed or adjusted after statistical use