Data Collection and Sampling Techniques

Instructors teaching research methods are interested in knowing what study techniques their students are utilizing in class. Rather than assessing all students, the researchers randomly select 10 students from each of the sections to comprise their sample.

• simple random sample

• convenience

• stratified

• cluster

Instructors teaching research methods are interested in knowing what study techniques their students are utilizing. Rather than assessing all students, the researchers randomly select 4 sections and interview all students in those chosen sections.

• simple random sample

• convenience

• stratified

• cluster

Instructors teaching research methods are interested in knowing what study techniques their students are utilizing. Rather than assessing all students, the researchers interview

the first 10 students that come into each section.

• simple random sample

• convenience

• stratified

• cluster

Instructors teaching research methods are interested in knowing what study techniques their students are utilizing. Rather than assessing all students, the researchers list all names of the students in each section and use a program to random pick 100 students.

• simple random sample

• convenience

• stratified

• cluster

Identify the data collection method used.

Meteorologists use a computer to predict where hurricanes how many hurricanes we will have this year.

• experiment

• simulation

• survey

• observation

Identify the data collection method used.

Scientist think the new medicine that made may help lower blood sugar. They select 100 males and 100 females of all ages with diabetes and randomly assign each one to a group that receives the medicine or a group that gets a placebo

• experiment

• simulation

• survey

• observation

Identify the data collection method used.

A teacher wishes to know how long each student takes a test. She write the beginning time for the test and records the time when a student finishes it.

• experiment

• simulation

• survey

• observation

Which sampling technique is being used?

An owner of a shop want to know what her customers think about the new line of products she has gotten in. She interviews the first 15 people who come into her store and records their responses.

• observation

• convenience

• voluntary response

• systematic

Which sampling technique is being used?

An owner of a shop want to know what her customers think about the new line of products she has gotten in. She interviews every 5th person who comes into her store and records their responses.

• observation

• convenience

• voluntary response

• systematic

Which sampling technique is being used?

An owner of a shop want to know what her customers think about the new line of products she has gotten in. She places a survey card about the products next to the cash register for the customers to record their opinions.

• observation

• convenience

• voluntary response

• systematic