Science Skills (Not Including Data And Scientific Writing)

Question 1

IV Vs DV

Answer 1

IV-
The variable that is being manipulated (controlled, selected or changed) by the researcher
DV-
The variable that is being measured by the researcher

Question 2

Controlled Experiment

Answer 2

An experimental investigation of the relationship between one or more independent variables and a dependent variable, in which all other variables are controlled

Question 3

Extraneous Variable

Answer 3

Variable other than the independent variable that may have an unwanted effect on the dependent variable and results of an investigation

Question 4

Controlled Variable

Answer 4

Variable that is held constant to ensure that the only influence on the dependent variable is the independent variable

Question 5

Confounding Variable

Answer 5

Unwanted variable that has affected the results of an investigation

Question 6

Population Vs Sample

Answer 6

Population-
The wider group of people that a study is investigating
Sample-
The smaller group of people selected from the population who will be participants in the investigation

Question 7

Random Sampling

Answer 7

Selecting participants from the population in a way that means each member of the population has an equal chance of being selected

Question 8

Stratified Sampling

Answer 8

First dividing the population into subgroups, and then randomly selecting participants from each subgroup in the proportion that they appear in the population

Question 9

Convenience Sampling

Answer 9

Most readily available people from the population

Question 10

Experimental Vs Control Group

Answer 10

Experimental-
The group that is exposed to the independent variable and receives the experimental treatment
Control-
The group that forms a baseline level to compare the experimental group with

Question 11

Between-Subjects Design

Answer 11

Investigation design in which participants are randomly allocated to either the control or the experimental condition

Question 12

Within-Subjects Design

Answer 12

Investigation design in which all participants in the sample are involved in both the experimental and control conditions

Question 13

Mixed Design

Answer 13

Investigation design that combines elements of a between-subjects design and a within-subjects design

Question 14

Primary Vs Secondary Data

Answer 14

Primary-
Data collected through firsthand research for an intended purpose
Secondary-
Data obtained second hand through research conducted by another person for another purpose

Question 15

Subjective Vs Objective Data

Question 16

Quantitative Vs Qualitative

Question 17

Internal Vs External Validity

Question 18

Uncertainty

Question 19

Erros