Chapter2 1-4

Question 0

Survey Method

Answer 0

Series of questions about a particular subject

-questionnaires, or interviews

Question 1

Steps of Scientific Method

Answer 1

• forming a research question
• forming a hypothesis
• testing the hypothesis
• analyzing the results
• drawing conclusions

Question 2

Target Population

Answer 2

Whole group to be studied.

Question 3

Sample

Answer 3

Small part of target population

Question 4

Random Sample

Answer 4

Participants selected by chance; each member has equal chance

Question 5

Stratified Sample

Answer 5

Subgroups are represented proportionally

Question 6

Bias

Answer 6

Predisposition to a certain point of view despite facts

Question 7

Volunteer Bias

Answer 7

People who volunteer have a different outlook from those who don’t

Question 8

Correlation

Answer 8

Measure of how closely one thing is related to another

Question 9

Positive Correlation

Answer 9

One variable increases, the other one increases; one variable decreases the other decreases

Question 10

Negative Correlation

Answer 10

As one variable increases, the other variable decreases

Question 11

Independent Variable

Answer 11

Factor that researchers manipulate so they can determine effect

Question 12

Dependent Variable

Answer 12

Depends on something, what is being measured

Question 13

Experimental Group

Answer 13

Receives treatment

Question 14

Control Group

Answer 14

Doesn’t receive treatment

Question 15

Placebo

Answer 15

Substance or treatment that has no effect aside from a persons belief in its effects

Question 16

Single-Blind Study

Answer 16

Participants do not know whether they are in the experimental group or in the control group

Question 17

Double-Blind Study

Answer 17

Both participants and researchers are unaware of who receives the treatment

Question 18

Deception

Answer 18

When they believe that the benefits of the study outweigh the harm