Exam 1: Introduction to Statistics

"The voting patterns of Californians are different than New Yorkers." What is the main problem with how this research hypothesis has been stated?

A researcher asks people whether they are either "in favor", "against", or "not sure" about the war in Iraq. This variable may best be described as being measured at the ______ level of measurement.

A researcher who analyzes prison records of inmates who committed violent assaults while incarcerated is conducting survey research.

A researcher hypothesizes that students who listen to classical music while studying will perform better on exams than students who study listening to rock. In this study, the independent variable is ______; the dependent variable is ______.

One study found that college students' grades in Introductory Psychology (Psy 1) was a better predictor of their GPA within the Psychology major than their SAT scores (Meeker et al, 1994). In this study, the dependent variable is ______.

"Group A will have the lowest scores on the test." What is the main problem with how this research hypothesis is stated?

Which of the following is an example of a directional hypothesis?

A researcher studying college students asks them to tell him how many dates they have gone on in the last month. This variable may best be described as being measured at the ______ level of measurement.

One research study stated that "daughters of divorced parents are hypothesized to exhibit higher levels of promiscuity than sons of divorced parents" (Cooney, 1994). In this study, the dependent variable is best described as ______.

A research hypothesis is a ______ regarding the relationship between variables.

Including a control group is the only way to reduce the influence of confounding variables in an experiment.

In the journal Cyber Psychology and Behavior, a team of researchers hypothesize "Heavy users of online games have less fulfilling interpersonal relationships than individuals who spend very little or no time playing online games" (Lo et al, 2005). In this study, the dependent variable is best described as ______.

A research asks people on a scale of 1-20 how much do they fear becoming a victim of a violent crime. This variable may best be described as being measured at the ______ level of measurement.

In the journal Cyber Psychology and Behavior, a researcher asked, "Are students who report higher degrees of loneliness more likely to form new online relationships than other students with lower degrees of loneliness?" (Bonebrake, 2002). In this study, the independent variable is best described as ______.

An instructor asks her students how often they missed class during the semester: "0," "1 time," "2-6 times," "7-15 times," or "More than 15 times." This variable may best be described as being measured at the ______ level of measurement.

Of the following hypotheses presented, which one is non-directional?

"College students will rate instructors who dress formally . In this study, the independent variable is best described as ______.

Within a research hypothesis, the ______ variable may be thought of as the ______.

A study of people who lost their homes in Hurricane Katrina hypothesized that "greater amounts of television viewing (about the hurricane) would predict greater levels of depression" (McLeish & Del Ben, 2008). In this study, the dependent variable is best described as ______.

A researcher hypothesizes that people aged 35-54 are more opposed to a governor's special election than either younger (<35) or older (>54) voters. In this study, the independent variable is ______.