WEEK 3

Question 1

what are the 5 elements of the scientific method( SAM LIKES EATING RED RASBERRIES)

Answer 1

1- systematic

2- logical

3- empirical

4- reductive

5- replicable

Question 2

define bias

Answer 2

a systematic error or deviation from the truth, in the results. biases can lead to under estimation or over estimation

Question 3

what is the 7 step process to create the scientific method

Answer 3

1- start with a broad question that we need to solve

2- articulate what it exactly is to achieve

3- the researcher divides the principle problem into manageable

4- researcher identifies hypotheses

5- researcher develops a specific plan

6- researcher collects, analyses and organises data

7- the researcher interprets the meaning of data

Question 4

wha are variables and give an eg

Answer 4

anything that can be classified or measured

eg layer height

Question 5

describe an independent variable

Answer 5

• manipulated as part of the research

eg player selection status

Question 6

independant variable: what is an attribute

Answer 6

pre existing trait

eg player selection based on their status

Question 7

indépendant variable: what is an active

Answer 7

chosen/ manipulted

• eg training modality

Question 8

what is a dependent variable

Answer 8

the measured difference effect or change

Question 9

what is an extraneous variable

Answer 9

anything that can influence the dependant variable

eg fatigue status

Question 10

what is a limitation and give an eg

Answer 10

a weakness of the study, based on factors outside of the researchers control

eg limited to a convenience sample

Question 11

what are delimitations

Answer 11

boundaries you intentionally place on the scope of your research question

eg limited to NRLW players

Question 12

what are assumptions

Answer 12

information about the research design that is presumed to be true but not verified

eg equipment accuracy

Question 13

what does validity mean

Answer 13

• the quality of being based on truth or reason

Question 14

describe internal validity x3

Answer 14

1 - extraneous variables are controlled

2- alternative explanations are eliminated

3- instruments are valid

Question 15

describe external validity( x2)

Answer 15

• findings apply to practical situations
• findings are generalisable

Question 16

what are the 3 internal vs external validity points

Answer 16

• increase sample size= reduce effect of any differences in extraneous variables
• increase replication= performing more experiments that ask the same question
• decrease selection bias

Question 17

what is a population

Answer 17

a group of population that have one or more things in common

Question 18

selection strategy: what is random selection and what are the 4 random selections

Answer 18

def= randomly selecting your participants from the entire population

• simple= everyone in the population has the same chance of being included in the sampling
• systematic= select every 8th person from the population
• stratified sampling= match sample on certain characteristics they have
• cluster= randomly selecting groups of the participants in the population

Question 19

define non random selection and describe the 3 selections

Answer 19

def= used when there are financial and logistical with using random selection strategy

conveniance= recruit participants through advertising

• quota= attempt to mirror selected characteristics of population
• purposive= purposely select particular sub group of population