An investigation of one or more characteristics in a population, which usually consists of questions that gather data.
What is a survey?
100
The type of data in which no numeric values are provided, and instead labels are put in place.
What is qualitative data?
100
The use of a mathematical or physical model to reproduce a situation in real life.
What is a Simulation?
100
One group is given a treatment, and the other is given a pill that is told to be the treatment, but actually serves no medicinal purpose. This is called the _____ effect.
What is the Placebo effect?
100
The four levels of measurement are:
What are nominal, ordinal, interval, and ratio measurements?
200
The experimental effect where the experimenter cannot tell the difference between the effects of different factors on a variable.
What is a confounding variable?
200
The type of data in which numeric values are used to measure the population (or sample)'s personal relevance to the subject the experimenter has chosen.
What is quantitative data?
200
A sample made up of people who are easy to reach in a certain area.
What is a convenience sample?
200
Group A is given a pill that is said to increase their overall physical fitness.
Group B is given a similar looking pill, though it contains no medicinal benefit.
Group A is the experimental group, meanwhile, Group B is the ____ group.
What is a control group?
200
This level of measurement is strictly qualitative data, and uses categories, names, labels, and more. No math-related concepts can be utilized.
What is nominal level of measurement?
300
The type of experiment where neither the subject nor the experimenter know which group is receiving the placebo or treatment.
What is a double-blind experiemnt?
300
The branch of statistics that involves the organization, display, and summary of data.
What is descriptive statistics?
300
A method of sampling often associated with the "lottery method" of drawing individuals to include in a sample by no particular pattern.
What is a random sample?
300
Every few years, the United States _____ Bureau leads a full count of the entire nation's population.
What is a census?
300
This form of measurement can be qualitative or quantitative, but the differences between data entries are not meaningful.
What is ordinal level of measurement?
400
A group where no effects are applied through the experiment, and are often subject to receiving the placebo.
What is a control group?
400
The type of statistics in which the population is not accounted for, but more rather the sample of a population, which is used to draw conclusions based on the entire population.
What is inferential statistics?
400
A researcher divides several people in a population into groups, and then randomly selects those groups. This kind of sampling is referred to as _____.
What is cluster sampling?
400
A group of participants that originally are overweight and never exercise sign up for a weight-loss pill experiment that does not advise any form of exercise, but as soon as they begin participating, they exercise regularly. This is the ____ effect.
What is the Hawthorne effect?
400
The level of measurement in which zero represents a position on a scale rather than inherently having a value of zero.
What is interval level of measurement?
500
The subjects of an experiment may be called this term.
What are experimental units?
500
The numerical description of a population statistic.
What is a parameter?
500
Similar to cluster sampling, this method of sampling divides a population into very few groups and then randomly selects individuals from each group.
What is stratified sampling?
500
An experimenter draws several groups from a population, though does not draw individuals from different groups and places them together. This is closely related to ___ sampling.
What is cluster sampling?
500
A level of measurement in which it can only be measured quantitatively, and two data values can be formed into one to express as multiples of each other