Can you help me with these questions?

Question 1. Match the term with the correct definition

a. procedure for deciding whether the outcome of a study (results for a sample) supports a particular theory or practical innovation (which is thought to apply to a population).

b. prediction, often based on informal observation, previous research, or theory, that is tested in a research study

c. set of principles that attempt to explain one or more facts, relationships, or events; psychologists often derive specific predictions from theories that are then tested in research studies.

d. statement in hypothesis testing about the predicted relation between populations (often a prediction of a difference between population means).

e. statement about a relation between populations that is the opposite of the research hypothesis; statement that in the population there is no difference (or a difference opposite to that predicted) between populations; contrived statement set up to examine whether it can be rejected as part of hypothesis testing.

f. distribution used in hypothesis testing.

It represents the population situation if the null hypothesis is true. It is the distribution to which you compare the score based on your sample's results.

h. conclusion that the results of a study would be unlikely if in fact the sample studied represents a population that is no different from the population in general;

an outcome of hypothesis testing in which the null hypothesis is rejected.

I. maximum level of significance widely used in psychology.

j. research hypothesis predicting a particular direction of difference between populations-for example, a prediction that the population like the sample studied has a higher mean than the population in general.

l. hypothesis-testing procedure for a directional hypothesis; situation in which the region of the comparison distribution in which the null hypothesis would be rejected is all on one side (tail) of the distribution.

m. research hypothesis that does not predict a particular direction of difference between the population like the sample studied and the population in general.

Question 2

Label each of the following as statistically "significant" or "nonsignificant".

1 p<.01

[ Select ] Significant or nonsignificant

2 p=.50

[ Select ] Significant or nonsignificant

3 p=.051

[ Select ]Significant or nonsignificant

4 p<.10

[ Select ]Significant or nonsignificant

5 p=.036

[ Select ]Significant or nonsignificant

6 p=.06

[ Select ]Significant or nonsignificant

7 p>.05

[ Select ]Significant or nonsignificant

8 p<.001

[ Select ]Significant or nonsignificant

9 p<.05

[ Select ]Significant or nonsignificant

10 p=.0509

Question 3 Label each of the following with the correct hypothesis type for the following scenario.

In a large psychology course, students formed two separate study groups. Both groups had access to the textbook. In addition to the textbook resources, Group A found and used online study tools with a variety of examples. Group B used the resources in the textbook.

1. There will be no difference between Groups A & B in exam performance. [Select ]
2. There will be a difference in scores between Group A and Group B. [ Select ]
3. Group A will score higher than Group B.

[ Select ] Alternative hypothesis or null hypothesis

Question 4

A p<.05 means that there is a 5% probability of the results if the null hypothesis were true.

• True
• False

Question 5

We can either reject the null hypothesis or fail to reject the null hypothesis; we cannot accept the null.

True

O False

Question 6

If p>.05, then we fail to reject the null hypothesis; if p<.05, then we reject the null hypothesis.

True

O False

Question 7

The question, "What is the probability of getting our research results if the null hypothesis i true?" can be answered using the...

• alternative hypothesis.
• standard deviation.
• p-value.
• mean.

Question 8

Select all In which instances would you reject the null hypothesis?

• p<.07
• p=.045
• p<.051
• p=.09
• p<.001
• p<.50
• p<.05
• p=.011
• p>.05