## Dependent & Independent Variable, Researcher, Sum of Squared Deviations

The key terms in these Statistics chapters include Independent Variable, Survey, Parameter, Dependent Variable, Population, Researcher , Sum of Squared Deviations, Hobbies, Subjective Well-Being, Correlational Research, .

A researcher uses an anonymous survey to investigate the television-viewing habits of American adolescents. The goal of the research is to determine the average number of hours each day that American adolescents spend watching television. The researcher is trying to determine a number that is an example of a _____.

**Parameter**

What is the value of SS (sum of squared deviations) for the following population? Population: 1, 1, 1, 5

**12**

Researchers want to test whether increased alcohol consumption leads to risky decisions. What is the independent variable?

**Alcohol consumption**

A researcher wants to see if an aspirin advertisement increases sales if it uses a doctor spokesperson instead of a kindergarten teacher spokesperson. What is the dependent variable?

**The increase or the decrease in sales**

What is the value of SS (sum of squared deviations) for the following population? Population: 1, 1, 1, 5

**12**

Researchers want to test whether increased alcohol consumption leads to risky decisions. What is the independent variable?

**Alcohol consumption**

A researcher wants to see if an aspirin advertisement increases sales if it uses a doctor spokesperson instead of a kindergarten teacher spokesperson. What is the dependent variable?

**The increase or the decrease in sales**

What is the value of SS (sum of squared deviations) for the following population? Population: 1, 1, 1, 5

**12**

Which of the following is a consequence of increasing variability?

**The distance from one score to another tends to INCREASE, and a single score tends to provide a LESS accurate representation of the entire distribution**

Researchers want to test whether increased alcohol consumption leads to risky decisions. What is the dependent variable?

**Risky behavior**

A researcher wants to see if a man is more attracted to a woman who shares many interests with him, or if he is more attracted to a date who likes different hobbies. What is the independent variable?

**Whether she has similar interests or different interests**

Researchers want to see if college students are more committed to their fraternity after going through a hazardous hazing ritual. What is the dependent variable? whether or not the student experiences a hazardous hazing ritual

**Commitment level**

An explicit, testable prediction about the conditions under which an event will occur is a(n)

**Hypothesis**

The primary goal of using correlational research is to

**Determine the nature and strength of the association between two measured variables.**

Rhianna is participating in a study on social contacts and subjective well-being. After each social interaction that is longer than 5 minutes in duration, Rhianna logs into a site and responds to a series of questions about how she is feeling. The researcher is using _____ self-report in this study.

**Event-based**

A researcher wants to see if a man is more attracted to a woman who shares many interests with him, or if he is more attracted to a date who likes different hobbies. What is the dependent variable?

**Attraction level**

Researchers want to see if paying artists for their work causes them to lose motivation to work on their art. What is the independent variable?

**Paying artist or not paying artists**

A researcher uses an anonymous survey to investigate the television-viewing habits of American adolescents. The goal of the research is to determine the average number of hours each day that American adolescents spend watching television. The researcher is trying to determine a number that is an example of a _____.

**Parameter**

**12**

Researchers want to test whether increased alcohol consumption leads to risky decisions. What is the independent variable?

**Alcohol consumption**

A researcher wants to see if an aspirin advertisement increases sales if it uses a doctor spokesperson instead of a kindergarten teacher spokesperson. What is the dependent variable?

**The increase or the decrease in sales**

**12**