Participants
Probability Sampling Methods
Non-Probability Sampling Methods
Challenges for VI Participants in Research
100

The total number of participants involved in the study

What is sample size?

100

This kind of sampling ensures that every member of the population has a chance of being selected. (Opposite of non-probability sampling)

What is probability sampling?

100

In this sampling, not every member of the population has a known or equal chance of being selected. It is often used in exploratory research or when probability sampling is not feasible. (opposite of probability sampling)

What is non-probability sampling?

100

VI students represent a small part of the overall student population, leading to this issue in research studies.

What is a small sample size?

200

When writing about the participant’s demographics, it is important to only include (BLANK) information to avoid cluttering the analysis

What is relevant?

200

A method in which every individual in the population has an equal chance of being selected. (most straightforward type of sampling)

What is simple random sampling?

200

A method in which the sample is selected based on ease of access or availability, without regard for randomness.

What is convenience sampling?

200

To ensure accessibility, research materials should be available in these three alternative formats.

What are audio, large print, and braille?

300

Offering participants money for participating in a study can be a form of what?

What is incentive?

300

A method in which the population is divided into clusters (often geographically), and entire clusters are randomly selected for sampling.

What is cluster sampling?

300

A method in which existing study participants recruit future participants from among their acquaintances, forming a “snowball” effect.

What is snowball sampling?

300

The lack of these types of campaigns can lead to low awareness of research studies among people with visual impairments

What are targeted recruitment campaigns?

400

A fundamental, ethical and legal requirement in research involving human participants. It ensures that participants understand the nature of the study, what they are being asked to do, the risks and benefits of participation, and their rights, so they can make a voluntary decision about whether to participate.

What is informed consent?

400

What type of method is used in this example: Choosing every 10th person from a list of 1,000 people

What is systematic sampling?

400

A method in which individuals volunteer to participate in the study, and the researcher uses these self-selected individuals as the sample.

What is self-selection sampling?

400

This type of barrier can discourage VI participants from taking part in studies if locations are not accessible.

What are transportation barriers?