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Quiz: Two Group Designs Results for Harold Hanson

Correct answers are hidden.

Score for this quiz: 85 out of 100

Submitted Mar 4 at 8:11pm

This attempt took 92 minutes.

2.5 / 2.5 pts

Question 1

When conducting a Dependent-Samples (Matched-Pairs, Paired

Samples) T-Test, the degrees of freedom is calculated using the

following equation/symbol:

N-2

N-1

N

p - 0.05

0 / 2.5 pts

Question 2

Incorrect

Incorrect

When conducting an Independent Samples T-Test in SPSS,

which of the following is the “test” variable?

independent variable

dependent variable

control variable

subject number

Online

Residential

Athletic

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No.Answer is found in the Kirkpatrick SPSS text or in the SPSS

presentations from Weeks 7-8.

0 / 2.5 pts

Question 3

Incorrect

Incorrect

If a teacher wants to assess whether there is a relationship

between males and females on test performance, the most

appropriate statistical test would be:

point biserial correlation

independent samples t-test

correlated groups t-test

pearson’s r correlation

No. Answer is found in the presentations from Weeks 7 – 8.

2.5 / 2.5 pts

Question 4

To ensure the sample is representative of the population about

whom one is trying to generalize, one should use:

random assignment

diffusion of treatment

exact replication

random selection

2.5 / 2.5 pts

Question 5

If a teacher administers a test and everyone scored 100% on it,

s/he should be concerned about:

ceiling effect

oor effect

external validity

testing effect

2.5 / 2.5 pts

Question 6

When conducting an Independent Samples t-test in SPSS, if

Levene’s Test for Equality of Variances is signicant, you

should:

use the t-test output from the row of “equal variances

assumed”

use the t-test output from the row of “equal variances not

assumed”

hand-calculate the t-test because SPSS is wrong

nothing, since the homogeneity of variance assumption was

met

2.5 / 2.5 pts

Question 7

A researcher examined number of monthly meetings (2 or 4) on job

satisfaction. If the

t

obtained for a correlated groups t-test was 2.50,df= 3,

and the

t

critical = 3.182,what should s/he conclude?

Reject the null hypothesis and conclude that the number of

meetings had no effect on job satisfaction.

Reject the null hypothesis and conclude that the number of

meetings signicantly affected job satisfaction.

Fail to reject the null hypothesis and conclude that the numberof

meetings signicantly affected job satisfaction.

Fail to reject the null hypothesis and conclude that the number of

meetings had no effect on job satisfaction.

2.5 / 2.5 pts

Question 8

If a teacher wants to assess whether there is a difference

between males and females on test performance, the most

appropriate statistical test would be:

point biserial correlation