General Research
The variable that is being manipulated
What is the independent variable?
A testable, prediction, often inspired by a theory.
What is a hypothesis?
Name the type of research:
Looks at many cases in depth, asking people to report their behavior or opinions.
What is a survey?
The type of the correlation of the example:
The more you sleep, the less tired you may feel.
What is a negative (indirect) correlation?
Find the mode of this data set:
13, 6, 9, 42, 6, 512, 6, 42, 948, 67, and 1
What is 6?
The variable that is measured
An explanation using an integrated set of principles that organizes observations and predicts behaviors or events.
What is a theory?
Name the type of research:
A descriptive of technique in which one individual or group is studied in-depth in the hope of revealing universal principles.
What is a case study?
Examples:
- More study time causes higher grades.
- More correct notes in Guitar Hero causes a higher score.
- More hours worked at a job causes a higher paycheck amount.
____ can heavily affect the mean of a dataset.
What are outliers?
Example: salaries, Elon Musk, Jeff Bezos, and other top 1% would skew the "mean"
A research method in which an investigator manipulates 1+ factors to observe the effect on some behavior or mental process.
What is an experiment?
Create a hypothesis about the two variables: study time and grade on exam.
Example:
The more hours spent studying the higher the grade on the exam.
Name this type of research:
A descriptive technique of observing and recording behavior in naturally occurring situations without trying to manipulate control.
What is (naturalistic) observation?
The range of a correlation coefficient __ to __
What is -1 to +1?
If you are worried about outliers, this measure of central tendency should be used...
What is the median?
In a hypothetical study, your independent variable is study time, you dependent variable could then be ____
Examples:
exam score, hours of sleep, hours of free time, missed meals
Fill in the blank in the scientific method:
Theories --> Hypotheses --> _______ --> Findings
What are Research and Observations?
Give an example of a naturalistic observation study.
Examples:
- Animals in the wild
- Do people recycle?
- Language Development in children
Go to Slides
What is B?
Find the range of this dataset:
1, 5, 8, 12, 17
What is 16?
Reminder: for range you find the different between the highest (17) and lowest (1) score.
What was the IV of Dr. Sur's experiment with the ferrets in the documentary?
(hint: the DV: animals' responses to the changes)
The rewiring is the IV because it's what the researchers manipulated
Name 2 of the 3 things a good theory does.
1. Organizes Observations
2. Implies Predictions
3. Stimulates Further Research
Man who had a large iron rod was driven completely through his head in a railroad accident, leading to a famous example of a case study.
Who is Phineas Gage?
Provide a potential third variable for the example:
The positive (direct) correlation of number of firefighters at a scene and amount of damage done.
Potential Response:
- Severity of Fire
A measure of variation that shows how much scores vary around the mean score.
What is standard deviation?