Author Question: Which type of analysis combines the results of several similar studies? 1. An ANOVA is used to ... (Read 70 times)

MGLQZ

  • Hero Member
  • *****
  • Posts: 579
Which type of analysis combines the results of several similar studies?
 
  1. An ANOVA is used to statistically combine the outcomes of several studies.
  2. A MANOVA is used to statistically combine the outcomes of several studies.
  3. A meta-analysis is used to statistically combine the outcomes of several studies.
  4. The use of parameters rather than statistics is needed when comparing the results of several studies at once.

Question 2

In what way is multiple regression an advanced statistical test that differs from the more common inferential statistics of t test and ANOVA?
 
  1. The only difference is that multiple regression is a more powerful test than either a t test or ANOVA.
  2. A multiple regression has multiple independent variables and one dependent or outcome variable.
  3. A multiple regression has one independent variable and multiple dependent or outcome variables.
  4. A multiple regression examines the difference between the mean scores of two or more groups on two or more dependent variables.


Cheesycrackers

  • Sr. Member
  • ****
  • Posts: 333
Answer to Question 1

3
Rationale 1: The purpose of an ANOVA is to look at the effect of an independent variable on the dependent variable within one study.
Rationale 2: A MANOVA is similar to an ANOVA, but a MANOVA examines the difference between the mean scores of two or more groups on two or more dependent variables.
Rationale 3: This technique does combine the results of several studies at once. This allows for the correction of type II errors often seen in studies with smaller sample sizes.
Rationale 4: Statistics are used when comparing outcomes between and among samples.
Global Rationale:

Answer to Question 2

2
Rationale 1: Multiple regression looks at multiple factors at one time.
Rationale 2: The t test and ANOVA both have one independent and one dependent variable, although a t test can have two groups within the independent variable and ANOVA can be used to calculate the results of two or more groups (still one independent variablegroup) on one dependent variable.
Rationale 3: A multiple regression has multiple independent variables and one dependent or outcome variable.
Rationale 4: This is the definition of a multivariate analysis of variance or MANOVA.
Global Rationale:



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

For a complete list of videos, visit our video library