Question
Ask whether a relationship exists between variables in a particular population
Hypothesis
PICOT scaffold
Population of interest Issue of interest Comparison between variables to be researched Outcome of the comparison Time
Sampling
Random sample
Involves selecting people so that everyone has an equal chance of being selected
Example: weekly Oz lotto draw is a random sample as every number has an equal chance of being selected
Systematic random sample
Obtained by choosing one number at random and then every nth number after this random start
Example: by randomly selecting a 2 and the 3 is your n number, you could choose a house and then select every 3rd house after that in your street
Stratified random sample
Involves a process where the population is divided into strata (layer) groups and then random selection occurs within each strata making a balanced representation of each strata group and the groups can be compared with each other in similar proportions to the general population
Examples: boys and girls, children and adults, family structures, primary students and secondary students
Cluster sample
Involves dividing the population into clusters and random selection is made within the clusters. A researcher using this method doesn’t need to choose a specific part of the population to take their sample from
Example: clusters of school rolls and 4 roll call groups are selected at random and 5 people from each group are selected
Convenience sample
Occurs when a researcher selects people because they are easily located. These results have the lowest credibility as they can be biased and not represent the population.
Examples: friends in a year 12 group or family members
Sample group
You can identify or decide where a sample group is to be chosen from or where the list is to draw the sample from
Examples:
Sample size
necessary that it suits the:
Primary data
Collected firsthand from individuals or groups who were:
Secondary data
Found in:
Qualitative data
Subjective data that come from research that collects facts and information regarding people’s beliefs, feelings, attitudes and opiniond to gain insight to the area
Quantitative data
Objective data that come from research that collects facts in the form of numerical data which can then be analysed using counting, measuring and graphing
Individuals and groups
Groups can be:
Print and digital
Adds depth and detail to the research process that wouldn't be possible individually and it is possible to access global data that is far-reaching in scope and content Print sources: - books - journals - magazines - newspapers - pamphlets
Digital sources:
Cheching authority for print and digital sources
Checking accuracy for print and digital sources
Checking currency for print and digital sources
Checking purpose for print and digital sources
Checking relevance for print and digital sources
- does it provide you with further information?
Reliability
Validity
Validity can be maintained by: