Simple Random Sampling: Definition
Simple random sampling is a sampling technique where every item in the population has an even chance and likelihood of being selected in the sample. Here the selection of items completely depends on chance or by probability and therefore this sampling technique is also sometimes known as a method of chances. 

Probability Sampling: Definition
Probability Sampling is a sampling technique in which sample from a larger population are chosen using a method based on the theory of probability. For a participant to be considered as a probability sample, he/she must be selected using a random selection. 
The most important requirement of probability sampling is that everyone in your population has a known and an equal chance of getting selected.

QuestionPro wants to prepare you for the inevitable moment when you’re searching for a safe, non-political topic to chat with your great-aunt about, so we’ve compiled a list of fun facts you may not know about Thanksgiving—check out our infographic inside.

Emotional intelligence, not to be confused with IQ or being emotional, is the capability of individuals to use emotional information to guide thinking and behavior. Interestingly enough, emotions are a huge driver for consumer decision-making. Successful brands are conducting Emotional Market Research to identify emotional values in order to position themselves against competitors and increase authenticity in their storytelling.

A bad dream for those crafting online survey questionnaires might go as follows…
Panel members take an online survey critiquing a previous online survey in which they participated, and one that you wrote. The results are overwhelmingly negative. The panel members hated the experience and admit they offered slapdash information that, as an effect, will actually hinder your research more than help.