Mod7Less2

When comparing three or more groups on some continuous measure, the independent variable is...

Ordinal or ratio scale

Nominal or ordinal scale

Nominal or interval scale

Ratio or nominal scale

When comparing three or more groups on some continuous measure, the dependent variable is...

Ratio or nominal scale

Ratio or ordinal scale

Nominal or interval scale

Interval or ratio scale

The statistical test used to compare three or more groups on a continuous variable is...

Dependent samples t-test

One-sample t-test

Independent samples t-test

One-way analysis of variance

The null hypothesis states that...

1) there is a significant difference between at least two groups

2) there is no significant difference between groups

3) the groups are statistically equivalent

4) options 1 and 3

The alternative hypothesis states that...

There is no significant difference between groups

There is a significant difference between groups

The group are statistically equivalent

None of the above

When conducting statistical tests, we are testing...

The alternative hypothesis

The null hypothesis

Both the null and alternative hypothesis

The research question

In the video, what is the research question being examined?

Is there a difference in gender between different education levels

Is there a difference in education level among females

Is there a difference in education level among males

Is there a difference in the number of days with cold symptoms between the placebo, low dosage, and high dosage vitamin C groups?

Based on the video, which of the following is the independent variable?

Males and females

Education level

Gender

Vitamin C dosage groups

Which of the following is the dependent variable?

Males and females

Education level

Gender

Number of days with cold symptoms

If the results of the one-way ANOVA reveal no group differences in number of days with cold symptoms, then...

1) we fail to reject the null

2) we reject the null

3) we accept the null

4) options 1 and 3

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