psych data

Question 1

nature vs nurture

Answer 1

nature - environment, nurture - how they were raised. It has a greater influence on a person’s mental process and behaviour

Question 2

independent variables

Answer 2

the one usually manipulated

Question 3

Dependent Variable

Answer 3

depends on the independent variable

Question 4

extraneous variable

Answer 4

variable that could affect the DV but has been controlled so it doesn’t

Question 5

confounding variable

Answer 5

a variable that effects the DV

Question 6

Nominal

Answer 6

name categories - qualitative

Question 7

ordinal

Answer 7

ordered data - scales

Question 8

interval

Answer 8

temperature - statistical data

Question 9

Independent measures

Answer 9

participants randomly allocated to EITHER c-group or e-group

Question 10

Repeated measures

Answer 10

EACH participant belongs to the E-group and C-group

Question 11

Matched participants

Answer 11

using different but similar participants in each condition of the experiment.

Question 12

Random sampling

Answer 12

all members of the population have an equal chance of being chosen - best representation of the whole population

Question 13

Pearsons correlation

Answer 13

measures the linear relationship between two continuous variables

Question 14

spearman correlation

Answer 14

measures relationship between two ordinal variables

Question 15

correlation

Answer 15

the strenght of a relationship between two variables

Question 16

positive correlation

Answer 16

two variables change in the same direction

Question 17

negative correlation

Answer 17

one of the two variables increases while the other decreases

Question 18

r-value

Answer 18

The value given to the strength and direction of the relationship. This ranges from 0 to 1 and can be positive or negative

Question 19

r-value - 1-0 what does that mean?

Answer 19

r-value of 1 - the closer the stronger,

r-vale of 0 - the weaker the corrolation

Question 20

stratified sampling

Answer 20

Pick a particular characteristic that might affect the results

Question 21

convenience sampling

Answer 21

whoever is convenient/available at the time

Question 22

reliability - things to consider

Answer 22

Results are consistent. To be able to repeat over and over again and still have the similar results
How consistent is the method? How consistent are the results? If the method was to be repeated, how likely would we get the same results?

Question 23

internal reliability

Answer 23

the extent to which a measure is consistent within itself - Checked by split half method

Question 24

external reliability

Answer 24

how consistently does a method measured over time when repeated - test/retest method

Question 25

Validity - things to consider

Answer 25

Results satisfy objectives. About whether or not our process spits out a result that answers our question. To what extent does the method measure what it’s meant to measure?
How likely is it that these results are what we would expect to find in real life?
To what extent can the results be applied to the general population in a real-life context?

Question 26

internal validity

Answer 26

examines whether the results gained from a measure are truly due to the variable that it is thought to be measuring

Question 27

external validity

Answer 27

criterion-related validity that refers to the extent to which results from this measure are comparable with other, established measure of the variable

Question 28

content validity

Answer 28

internal validity that involves examining the instrument to decide whether it appears to be measuring what it is supposed to measure

Question 29

construct validity

Answer 29

deciding whether the test can be used to support the theory that is being tested
[Does an IQ test measure all of the abilities that are considered to make an IQ?]