section 3: statistical evaluation

Question 1

Statistics

Answer 1

branch of mathematics concerned with summarizing and making meaningful inferences from collections of data

Question 2

Descriptive Statistics

Answer 2

listing and summarizing of data in a practical, efficient way

Question 3

Frequency Distribution

Answer 3

arrangement of data that indicates how often a particular score or observation occurs

Question 4

Normal Curve

Answer 4

a graph of frequency distribution shaped like a symmetrical, bell-shaped curve; a graph of normal distribution

Question 5

Central Tendency

Answer 5

a number that describes something about the ‘average’ score of a distribution

Question 6

Variance

Answer 6

a measure of difference, or spread

Question 7

Standard Deviation

Answer 7

a measure of variability that describes an average distance of every score from the mean

Question 8

Inferential Statistics

Answer 8

numerical methods used to determine whether research data support a hypothesis or whether results were due to chance

Question 9

Correlation Coefficient

Answer 9

Describes the direction and strength of the relationship between two sets of variables

Question 10

Ethical guidelines

Answer 10

advice to help psychologists solve ethical issues

Question 11

Ethical issues

Answer 11

potential psychological or physical risks for people in experiments

• informed consent (individuals right to know what will happen in an experiment and its aims before agreeing to participants)
• right to withdraw (a participants right to leave a study any time and their ability to do so)