Especially answers 8 and 9 and 10 and 11

Software companies have developed computer programs that they claim will help senior citizens remain active. A consumer advocacy organization conducted a study designed to evaluate two competing software applications claimed to train the brain of this population. Thirty participants over the age of 65 were recruited into this study, with half given application A, and the other, App B. They were taught how to use the software and instructed to use it for at least 30 minutes a day for 2 months. After 2 months the memory performance of both groups was measured. For this scenario, you may assume that a score of zero (0) in memory means that nothing was remembered, and therefore 0 is not arbitrary. Please analyze in JASP. Run a 1-Way ANOVA on this dataset.

1. What is the 2-tailed null hypothesis?

a. Group of answer choices

b. App A will be better at improving memory.

c. Memory will make no difference on how to use the applications.

d. App B will be better at improving memory.

e. There will be no difference in application type on memory score.

2. What is the independent variable?

a. Memory performance

b. Type of Application

3. What is the dependent variable?

a. Memory Performance

b. Type of Application

3. What is the highest scale of measurement of the independent variable?

a. Nominal

b. Ratio

c. Ordinal

4. What is the highest scale of measurement of the dependent variable?

a. Nominal

b. Interval

c. Ratio

d. Ordinal

5. What are the mean and standard deviation for App A? Just write the digits. Please round/write your answer to one decimal place (for example .44 and below should be rounded to .4, while .45 and up should be rounded to .5).Non-compliance will result in point deductions.

Mean

S.D.

6. What are the mean and standard deviation for App B? Just write the digits. Please round/write your answer to one decimal place (for example .44 and below should be rounded to .4, while .45 and up should be rounded to .5).Non-compliance will result in point deductions.

Mean

S.D.

6. CHOOSE THE BEST ANSWER! What is the best interpretation of the equality of variance assumption for this analysis?

a. Group sizes are equal, ignore Levene's.

b. Levene's test is violated.

c. Even though group sizes are equal you MUST look at Levene's.

Question 8

What statistical method would you use to analyze these data?

Group of answer choices

Linear regression

Dependent T-Test

Independent T-Test/Point-Biserial Correlation

Pearson's correlation

Flag question: Question 9

CHOOSE THE BEST ANSWER! What is the best interpretation of the equality of variance assumption for this analysis?

Group of answer choices

Levene's test is violated, so assume unequal variances.

Group sizes are equal, ignore Levene's.

Even though group sizes are equal do not ignore Levene's.

Flag question: Question 10

Choose the best answer. What is the correct APA style report (ignore any negative signs)?

Group of answer choices

t(28) =4.7, p < .05, d = 1.7

t(28) =4.7, p < .01, d = 1.7

t(28) =4.7, p > .05, d = 1.7

t(28) =4.7, p < .001, d = 1.7

Flag question: Question 11

What is your decision about the null hypothesis?

Group of answer choices

Reject. the p-value is less than.

Do not reject. The p is more than .