Definitions
What is mean?
The average score in a group
How do you calculate mean?
Add all the scores together and divide by the number of participants
Help researchers test hypothesis
Inferential Statistics
What is a record of your opinion via vote (hint: it is often used on social media)?
what is a poll
Those methods involving the collection, presentation, and characterization of a set of data order to describe the various features of that set of data are called.
What is Descriptive statistics.
What is standard deviation?
Which group had the higher variance:
Group 1: SD = 52
Group 2: SD = 67
Group 2
Which branch of statistics helps researchers to summarize data so they can be easily comprehended?
Descriptive
What is something people take to give feedback on their personal experience?
what is a survey
The process of using sample statistics to draw conclusions about true population parameters is called.
What is Statistics inference
What is p value
It tells us if the results are statistically significant OR the probability that the results occurred by chance
What unit of measurement is mean an appropriate measure of central tendency for?
Ratio data
The methods used by an experimenter are crucial to the ______ validity of a study.
Internal and External
What is the relation between quantities?
What is a graph or what is a chart
a population in statistics mean a collection of all _____
what is the subject or object of interest
The probability that a statistically significant result was detected in the sample (measured from 0-1)
Mean = 8.39
Participant scores: 5, 7, 10, 14, 7, 12, 8, 9, 5
How many people scored above the mean?
4
A group of researchers want to know how much of their sample is comprised of freshman, sophomores, juniors, and seniors. What type of statistic can they use to gather this information?
Descriptive Statistics
What is something you do to gather information before doing an experiment?
What is research
The universe or totality of items or things under consideration is called population
What is population
What is type I and type II error?
Type I - false positive
Type II - false negative
Is this an example of Descriptive statistics or Inferential statistics? The average hours of sleep for a year 11 Psychology class was 7.35
Descriptive statistics
Positive relationship is an association when one variable_____ as the other variable____.
Increases; Increases
A very controlled experiment that allows you the researcher to control different situations/ conditions. And subjects are not picked at random.
quasi-experimental
A sample in statistics means a portion of the _____
What is the population of interest