Research and study skills 2- descriptive statistics

Question 1

What is descriptive statistics?

Answer 1

Organising, summarising and describing data

Question 2

What is correlational statistics?

Answer 2

exploring relationships

Question 3

What is inferential statistics?

Answer 3

Drawing an inference and generalising findings

Question 4

What are the variables of descriptive statistics?

Answer 4

Discrete to continuous and organismic to environmental

Question 5

What are variables?

Answer 5

Measurements that can be made, they can be stable or oscillate

Question 6

What is a discrete variable?

Answer 6

something that can only take one distinct category (quantised- smallest amount possible) (e.g. boy or girl)

Question 7

What is a continuous variable?

Answer 7

Something that can take any point on the scale (e.g. body weight)

Question 8

What is an organismic variable?

Answer 8

Variables that pertain to an organism

Question 9

What is an environmental variable?

Answer 9

variable that is decided by the environment/organisms surroundings

Question 10

How can we understand variables?

Answer 10

By level of measurement

Question 11

what are the 4 Levels of measurement?

Answer 11

1. Nominal
   2.ordinal
   3.interval
   4.ratio

Question 12

How does the level of measurement take form?

Answer 12

It is on a scale from nominal to ration, and the higher the level, the below levels get incorporated

Question 13

What is nominal?

Answer 13

identity, categories, dichotomy
for example, type of coffee (can be categorised)

Question 14

What is ordinal?

Answer 14

captures all the characteristics of nominal; it is a rank or series in which stuff is put in order; you know something is higher/bigger than the other but you don’t get the intervals between measurements
For example, the size of coffee cups but there’s no measurements

Question 15

What is interval?

Answer 15

When you get the measurements but there is no absolute zero
for example, pH and temperature

Question 16

what is a ratio?

Answer 16

when an absolute zero in data allows a ratio between data to be found; or adding a ration to interval data

Question 17

What is the systeme Internationale?

Answer 17

The international system of unit in which countries agreed how big and what values things are

Question 18

What are the measurements on the system internationale?

Answer 18

kg, s, m, A (Amps), K (Kelvin), cd, mol (amount of a substance in grams that matches its atomic mass)

Question 19

What do the arrows mean on the SI?

Answer 19

we can define other measurements using previous measurements

Question 20

What about the way the units are written?

Answer 20

lower case letters (unless it is named after a person, then it is uppercase); not pluralised or italicised; always a space between the number and units (same for % but not degrees)