Week 2

Question 1

What is an independent variable?

Answer 1

A variable that is manipulated and measured by the researcher

Question 2

what is a dependent variable?

Answer 2

The variable that is typically affected by the IV and measured

Question 3

What are levels of measurement?

Answer 3

Is the scale in which researchers measure data

Question 4

What are between-subjects design?

Answer 4

(independent measures) when a participant takes part in only one condition

Question 5

What are within-subjects designs?

Answer 5

(repeated measures) when all participants take part in all conditions

Question 6

What is a one-tailed hypothesis?

Answer 6

(directional) predicts the nature of the effect of the IV on the DV

Question 7

What is a two-tailed hypothesis?

Answer 7

(non-directional) predicts that the IV will have an affect on the DV but doesn’t specify what the affect will be

Question 8

When is a one-tailed hypothesis typically used?

Answer 8

Used when determining the relationship between the sample and the distribution

Question 9

What is a type 1 error?

Answer 9

When we believe manipulation has had an effect but actually hasn’t

Question 10

Shat is a type 2 error? (2)

Answer 10

When manipulation has had An effect but it hasn’t been detected due to lack of statistical power

Question 11

What can a type 1 error be called?

Answer 11

a false positive

Question 12

What is an experimental hypothesis?

Answer 12

A statement predicting the outcomes from an experiment

Question 13

What is a null hypothesis?

Answer 13

A hypothesis predicting that there will be no difference between A or B

Question 14

What is discrete data?

Answer 14

Data you can count

Question 15

what is continuous data?

Answer 15

Different scales of data that can take any value

Question 16

What is nominal data?

Answer 16

Category data

Question 17

what is ordinal data?

Answer 17

Ranked data that has a relative order

Question 18

What is interval data?

Answer 18

Data that comes in a numerical for, where the difference between points is standardised

Question 19

What is ratio data?

Answer 19

numerical data that is standardised between points but the origin number has to be 0

Question 20

What is a construct?

Answer 20

A tool used to facilitate understanding of human behaviour

Question 21

what is construct validity?

Answer 21

how well a test or tool measured the construct that it was designed to measure

Question 22

What is operationalisation?

Answer 22

A precise description of how a variable is defined

Question 23

What is reliability?

Answer 23

When we get similar results when we replicate an experiment

Question 24

What is validity?

Answer 24

How well is the researcher measuring what they have set out to measure

Question 25

What is an experimental design?

Answer 25

A design that allows the researcher to manipulate a variable and determine how that variable affects behaviour

Question 26

What is a quasi-experimental design?

Answer 26

An empirical interventional study Used to estimate the casual impact Of an intervention on A target population without random assignment

Question 27

What is a confound variable? (2)

Answer 27

Variables that may occur and effect the results of an experiment When detected, however, the researcher Dan try and control them

Question 28

What are extraneous variables?

Answer 28

Variables that researchers cannot control and may effect the results of research

Question 29

What are order effects?

Answer 29

When the position of tasks effect the outcome of an experiment

Question 30

What is informed consent?

Answer 30

Consent from a participant that is obtained when they are briefed about what they are taking part in before they do

Question 31

what are research ethics?

Answer 31

A set of policies that govern the field of psychology