So you want to do science...
A prediction stated in a way that can be tested
What is a hypothesis?
Events or qualities that can assume more than one value
What is a variable?
Measurement scale that lacks numeric properties
What is nominal?
Mean, median, and mode
What is central tendency?
The distance from the highest to the lowest scores
What is the range?
This is a method that involves self-reported attitudes or behaviors of a particular group
What is a survey?
A factor that is selected and manipulated or controlled by the experimenter
What is an independent variable?
Measurement scale used if a professor ranks subjects based on students' preferences identified through a survey.
What is ordinal?
This is the mean, median, and mode of the following list of numbers: 2, 3, 3, 3, 3, 3, 4
What is 3?
Characterizes the amount of spread in a distribution of scores
What is variability?
Statistics used to make generalizations, conclusions and predictions about a population from sample
What is inferential?
Studying the consumption of alcohol on midterm grades. Midterm grades is the ___________
What is dependent variable?
Measurement scale used for the number of guesses it takes to answer a jeopardy question correctly
What is ratio?
In a group of five individuals, two report annual incomes of $10,000, and the other three each report incomes of $14,000, $15,000, and $31,000, respectively. The mode of this group's distribution of annual income is _______
What is $10,000?
The square of the standard deviation
What is variance?
Scientific principle that it must be possible to make an observation that would show the hypothesis is false and can be rejected
What is falsifiability?
If you observe this relationship between variables, it does NOT mean that it is a causal relationship
What is a correlation?
Measurement scale used to assess ratings of usefulness of this jeopardy review by students using a 5-point scale ranging from not useful at all to very useful
What is interval?
The middle score in a distribution of scores
What is the median?
The measure of variability most affected by a few extreme scores
What is the range?
Hypothesis the researcher wishes to reject
What is the null hypothesis
Studying the effect of noise on the ability to play music. The results show that the time of day has an impact on the ability to play music. Time is a _________ variable.
What is extraneous or confounding variable?
An appropriate measure of central tendency to summarize data on an ordinal scale
What is median?
During the past year, Zara and Ivan each read 2 books, but George read 9, Ali read 12, and Marsha read 25. The median number of books read by these individuals was ____
What is 9?
Statistical measure that indicates the average deviation of scores from the mean
What is standard deviation?