Deck 16: Mixed Design Anova

Question 1

A randomized block design cannot control the placebo effect.

Answer 1

True

Question 2

A confidence interval at 99% is wider than at 95%.

Answer 2

True

Question 3

A logarithmic model is the most effective transformation method in regression analysis.

Answer 3

False

Question 4

What is a mixed design ANOVA also called?

A)Half and half
B)Split-plot
C)Multiple regressional
D)2 × 2

Question 5

When you don't know the standard deviation of a sample,what type of test would you use on the data?

A)One-sample z-test
B)One-sample t-test
C)Two-tailed z-test
D)Two-tailed t-test

Question 6

In a matched-pairs design study,participants in each pair receive what type of treatment?

A)The same
B)Different
C)Either the same or different
D)Alternating between the same and different treatments at each level

Question 7

A completely randomized design offers no control for lurking variables.

Question 8

If there is a correlation between two variables,it could be argued that both variables are influencing one another.

Question 9

When N gets larger,the confidence interval does not change.

Question 10

What is the percentage of pupils who scored higher than the female student?

A)1%
B)10%
C)18%
D)21%

Question 11

A linear transformation ______ the linear relationship between variables.

A)increases
B)decreases
C)neither increases nor decreases
D)can increase and decrease (depending upon the study)

Question 12

Which of the following are true in a four-way ANOVA?

A)Only the main effects should concern the researcher.
B)Higher-order interactions are easier to observe and interpret.
C)There are at least 16 different cells.
D)All of the above.

Question 13

When choosing which type of test to run,how does a large sample size (1000 or more)affect the type of test chosen?

A)Prioritize the t-test.
B)Prioritize the z-test.
C)Either test can be used.
D)Neither test should be performed on large data sets.

Question 14

In regression analysis,the presence of a residual plot exposes a departure from linearity.

Question 15

A sports pedagogy researcher looked at footballers' ability to score free kicks at different distances from goal (20 yards and 30 yards).He studied a random selection of matches in which David Beckham had scored at least one free kick.Beckham scored with 21 of 81 free kicks from 20 yards,with 42 of 205 attempts from 30 yards.What can be determined from these results?

A)The p-value is less than .0001,so we can infer Beckham scores more regularly from 20 yards than 30 yards.
B)The p-value is between .001 and .01,which gives strong evidence to suggest Beckham scores more regularly from 20 yards than 30 yards.
C)The p-value is between .01 and .10,which gives little evidence to suggest Beckham scores more regularly from 20 yards than 30 yards.
D)The p-value is greater than .10,which means there is virtually no evidence to suggest that Beckham scores more regularly from 20 yards than 30 yards.

Question 16

Which of the below is the correct formula for the null hypothesis to the above study?

A)P₂₀ ≥ P₃₀
B)P₂₀ = P₃₀
C)P₂₀ ≤ P₃₀
D)P₂₀ > P₃₀

Question 17

A female Year 10 student scored 940/1250 on a national test for 15-year-olds.The mean test score was 850,with a standard deviation of 100.With a normal distribution,you require the percentage of pupils who scored higher than this student.What is the first step to working out this answer?

A)Work out the z-score.
B)Perform a t-test.
C)Standardize the data.
D)Remove all errors.

Question 18

To control for the placebo effect,the researcher must?

A)Ignore any use of placebos.
B)Include a placebo in all treatment levels.
C)Include a placebo in one treatment level.
D)You cannot control the placebo effect.

Question 19

When the null hypothesis involves a continuous variable,would you use a one sample t-test or z-test?

A)t-test
B)z-test
C)Either
D)Neither

Question 20

In a three-way ANOVA,which of the following is true?

A)It can be called 'mixed design'.
B)It usually includes an analysis of covariance.
C)The sample sizes in each cell have to be the same.
D)None of the above.

Question 21

An a priori test is used to:

A)Find identical scores in two or more variables.
B)Look for matches in error rates between two different studies.
C)Test power analysis of data before data are collected.
D)Test power analysis of data after data have been collected.

Question 22

An a priori test is also known as?

A)Regressional power analysis
B)Application power analysis
C)Power measurement
D)Prospective power analysis

Question 23

In a mixed design ANOVA,how many dependent variables are there?

A)0
B)1
C)2
D)3

Question 24

The opposite to an a priori test is:

A)Post hoc analysis
B)Regression analysis
C)Three-way ANOVA
D)Application