7.1
Probability sampling is a technique to provide a _______ sample.
What is representative?
The question, "How was the sample collected?" would help you assess ______ validity?
What is external validity?
When we base our sample on people who are easy to include, we are engaging in _______ sampling.
What is convenience sampling?
Dr. Cyril conducts a simple random sample of 500 men who became fathers for the first time in the past year. He finds that 23% of them report being unsure of their ability to be good fathers, plus or minus 4%. If Dr. Cyril increased his sample size to 1,000, his margin of error would _______
What is decrease?
This type of sampling allows researchers to identify and recruit difficult-to-reach samples (e.g., people with stigmatized or concealed identities and people with rare diseases).
What is snowball sampling?
Random assignment is necessary for ____ validity, whereas random sampling is necessary for _____ validity.
What is internal and external?
1. A sample of 750 participants self-selected (volunteer) participants, and
2. A sample of 1,000 participants selected using oversampling.
Sample ____ has higher external validity while sample ____ is biased.
What is 2 and 1?
Name one of these two types of random sampling where the sample is taken from “groups” or clusters of people.
What is stratified random or multistage sampling?
A group of researchers is interested in studying dating relationships among college students in the US. This sampling method would best allow the researchers to generalize to all college students.
What is random sampling?
1. A sample of 1,000 participants selected using convenience sampling
2. A sample of 500 participants selected using stratified random sampling.
Of these 2, sample ______ would have the highest external validity.
What is sample 2.