Factors Affecting Data Collection
A method of collecting opinions and/or information
What is a SURVEY
All the individuals of a specific group being studied, ex. All grade 9 students in B.C.
What is a POPULATION
A sample created by choosing individuals from the population who are easy to access
What is a CONVIENCE SAMPLE
The way in which data are collected or obtained, such as direct observation, experiments, or surveys
What is DATA COLLECTION METHOD
To change the appearance or twist the meaning of something in a way that is misleading or biased
What is to DISTORT
A preference for a specific product, person, or group compared to another
What is a BIAS
If only our class is surveyed on different kinds of smartphone users we are what kind of grouping.
What is a SAMPLE?
A sample created by choosing a specific number of individuals randomly from the whole population
What is a RANDOM SAMPLE
A type of bias that results from a sample NOT reflecting the characteristics of the population due to either the sampling technique or the method of data collection (the ways data is asked or collected)
What is a SAMPLING BIAS
In a survey things like bias, wording, ethics, cost, timing, privacy and cultural sensitivity are considered what?
What are INFLUENCING FACTORS?
This kind of sample divides the whole population into distinct groups and chooses the same fraction of members from each group
What is a STRATIFIED SAMPLE
A sample created by inviting some or all of the members of a population to participate
What is a VOLUNTARY RESPONSE SAMPLE
This determines what part of the population will be surveyed to reflect the whole population, examples include convenience sampling, voluntary surveys, and stratified sampling.
What is SAMPLING TECHNIQUE
By using a break in the y-axis you can manipulate a graph and alter the perception of information. This is known as what?
What is DISTORTING THE SCALE or MAGNIFICATION
These could affect the validity or reliability of the data.
What are INFLUENCING FACTORS?
This kind of sample is created by choosing individuals at fixed intervals from a list of the whole population
What is a SYSTEMATIC INTERVAL SAMPLE
There are roughly 43,000 grade 9 students in B.C. 25% of this population are THIS number of students.
What are 10,750 students
A representative of a company selling Extra Bright Toothpaste stands in front of its products in a retail store and gives free samples to customers looking for toothpaste. The company later claims that 75% of all shoppers looking for toothpaste at the store chose Extra Bright Toothpaste. This shows WHAT kind of bias?
What is SAMPLING BIAS
What are a TITLE, a X-AXIS LABEL, and a Y-AXIS LABEL
The survey question "Do you think the senseless slaughter of polar bears should be stopped? YES or NO?" is this type of question influenced by this factor.
What is A LEADING QUESTION or a BIASED QUESTION influenced by LANGUAGE?
The least effective sampling method that a large manufacturing company could choose to check for quality control of a product.
What is a SYSTEMATIC CONVENIENCE SAMPLE
The organizer of a conference wants to know whether a particular speaker was helpful to the participants. The organizer includes a questionnaire in each registration package and asks participants to drop it in a box at the door on their way out. This shows WHAT kind of sample?
What is a VOLUNTARY RESPONSE SAMPLE
What are the SURVEY/DATA COLLECTION METHOD and the SAMPLE/POPULATION
An accurate pictograph needs to have these TWO elements
What are A LEGEND and UNIFORMLY SIZED PICTURES