BIOL2022 L13 Dealing with CLASS INDEPENDENT VARIABLES

Question 1 of 7

2

What conditions must be present in order to use an independent t-test?
A ❌ dependent variable;
A ❌ independent variable (with ❌ levels).

Drag and drop to complete the text.

Continuous

Class

2

>2

≥2 (>=2)

Explanation

Question 2 of 7

2

What conditions must be present in order to use a 1-way ANOVA?
A ❌ dependent variable;
A ❌ independent variable (with ❌ levels).

Drag and drop to complete the text.

Continuous

Class

≥2 (>=2)

2

>2

Explanation

Question 3 of 7

5

In an ANOVA, the F value is obtained by the formula:
---- Groups MS / Error MS ----
...where Groups MS = Groups SS / Groups DF
...and Error MS = Error SS / Error DF
In these, what are the following defined as?
DF = ❌;
MS = ❌;
SS = ❌;
…therefore:
Groups MS represents ❌, whereas Error MS represents = ❌.

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degrees of freedom

mean squared deviation from the mean

mean squares

sum of squared deviation from the mean

sum of squares

BETWEEN groups’ mean-squares

WITHIN groups’ mean-squares

BSOD

Explanation

Question 4 of 7

2

When reporting an ANOVA, what do each of the following numbers represent?
Options are:
#1 - df BETWEEN groups (# of treatment groups)
#2 - df BETWEEN groups (# of treatment groups - 1)
#3 - df BETWEEN groups ( (# of treatment groups) x (# of samples in each group) )
#4 - df BETWEEN groups ( (# of treatment groups - 1) x (# of samples in each group - 1) )
#5 - df WITHIN groups (# of treatment groups)
#6 - df WITHIN groups (# of treatment groups - 1)
#7 - df WITHIN groups ( (# of treatment groups) x (# of samples in each group) )
#8 - df WITHIN groups ( (# of treatment groups - 1) x (# of samples in each group - 1) )

Drag an answer into the correct orange point.

#2 BETWEEN

#1 BETWEEN

#3 BETWEEN

#4 BETWEEN

#5 WITHIN

#6 WITHIN

#7 WITHIN

#8 WITHIN

Explanation

Question 5 of 7

1

Homoscedasticity vs heteroscedasticity:
Heteroscedasticity means:

Select one of the following:

Variance is unequal, e.g. error gets larger on one side
Variance is unequal, e.g. more samples on one side
Distribution is unequal, e.g. error gets larger on one side
Distribution is unequal, e.g. more samples on one side

Explanation

Question 6 of 7

1

In order to perform an ANOVA, you should transform if your data is:

Select one of the following:

Heteroscedastic
Homoscedastic
Really shitty

Explanation

Question 7 of 7

2

Question: “Is aerobic enzyme activity greater in males than females?
Dependent variable: ❌, which is a ❌ variable;
Independent variable: ❌, which is a ❌ variable.

Drag and drop to complete the text.

Aerobic enzyme activity

Continuous

Sex

Class

	Created by Michael Jardine almost 6 years ago

BIOL2022 L13 Dealing with CLASS INDEPENDENT VARIABLES

Question 1 of 7

What conditions must be present in order to use an independent t-test? A ❌ dependent variable; A ❌ independent variable (with ❌ levels).

Drag and drop to complete the text.

Explanation

Question 2 of 7

What conditions must be present in order to use a 1-way ANOVA? A ❌ dependent variable; A ❌ independent variable (with ❌ levels).

Drag and drop to complete the text.

Explanation

Question 3 of 7

Drag and drop to complete the text.

Explanation

Question 4 of 7

Drag an answer into the correct orange point.

Explanation

Question 5 of 7

Homoscedasticity vs heteroscedasticity: Heteroscedasticity means:

Select one of the following:

Explanation

Question 6 of 7

In order to perform an ANOVA, you should transform if your data is:

Select one of the following:

Explanation

Question 7 of 7

Question: “Is aerobic enzyme activity greater in males than females? Dependent variable: ❌, which is a ❌ variable; Independent variable: ❌, which is a ❌ variable.

Drag and drop to complete the text.

Explanation

What conditions must be present in order to use an independent t-test?
A ❌ dependent variable;
A ❌ independent variable (with ❌ levels).

What conditions must be present in order to use a 1-way ANOVA?
A ❌ dependent variable;
A ❌ independent variable (with ❌ levels).

Homoscedasticity vs heteroscedasticity:
Heteroscedasticity means:

Question: “Is aerobic enzyme activity greater in males than females?
Dependent variable: ❌, which is a ❌ variable;
Independent variable: ❌, which is a ❌ variable.