Midterm Exam Review Quiz

Question 1

Done! This is not meant to be a representation of exactly what will be on the test; hopefully was helpful though.

Accepted Answer

Ok, Ok

Question 2

Which of these is NOT related to statistical power?

Accepted Answer

None of the above

Question 3

Which of these is the lowest level of measurement (least amount of info)?

Accepted Answer

Nominal

Question 4

In a study, patients receive either Vitamin D or placebo, & their health 1 yr later is gathered.

Accepted Answer

Health 1 yr later is the DEPENDENT variable

Question 5

Studies of change over time are limited by the reliability of measurement at each time point

Accepted Answer

True

Question 6

The research hypothesis from the prior question is a/an…

Accepted Answer

Two-tailed hypothesis

Question 7

Reliability is like inferential statistics in that…

Accepted Answer

Both are about finding true results amid theerror

Question 8

How have you studied so far?

Accepted Answer

Reviewed Learning Objectives & study document provided for this week, Reviewed chapters & mult choice Qs at the end of each, Studied lectures

Question 9

Which of the following is NOT a good reason for data screening?

Accepted Answer

Checking whether the hypothesis is supported

Question 10

As a rule, which of these will NOT help to increase reliability of measurement?

Accepted Answer

Reduce the # of items in your measure

Question 11

Odds-ratios and risk ratios will be similar when…

Accepted Answer

the risk of disease is low

Question 12

Which of the following percentiles is NOT within the interquartile range?

Accepted Answer

24th

Question 13

Which of the following is a fair criticism of Null Hypothesis Significance Testing (NHST)

Accepted Answer

Emphasizes statistical significance over effect size

Question 14

Research hypothesis: Men & women have a different # of fillings in their teeth. Null hypoth is...?

Accepted Answer

No difference between men & women in # of fillings

Question 15

Two versions of a stats test are given. The correlation between them is .90

Accepted Answer

This is an example of parallel forms reliability

Question 16

Probability distributions are useful because we know the probability…

Accepted Answer

Of randomly selecting a score from any region in them

Question 17

Which of these is a measure of how much score variation there is around the mean?

Accepted Answer

Standard deviation

Question 18

Prevalence studies estimate…

Accepted Answer

The frequency of disease in the population studied

Question 19

If you REJECT the null hypothesis when it’s really TRUE, this is…

Accepted Answer

Type I error

Question 20

Prevalence estimates in a study may be inaccurate if…

Accepted Answer

*I like "ALL of the Above"

Question 21

How much of the area under the standard normal distribution falls between -1 and +1?

Accepted Answer

68%

Question 22

Bias (systematic error) can be caused by…

Accepted Answer

I like "All of the Above" here

Question 23

Odds-ratios must be between…

Accepted Answer

0 and infinity

Question 24

Two observers independently rate a student nurse's patient communication skills (r=.63)

Accepted Answer

No, it's inter-rater reliability

Question 25

If you ACCEPT the null hypothesis when it’s really FALSE, this is…

Accepted Answer

Type II error

Question 26

Your measure of "patient satisfaction" is construct valid. Therefore, it…

Accepted Answer

Reflects how “patient satisfaction” is definedand measured

Question 27

For what kind of distribution are the mean, median and mode the same?

Accepted Answer

Normal

Question 28

The risk of getting a cold if you wear snow boots is SIMILAR to the risk if you don't.

Accepted Answer

Actually the risk ratio would be close to 1

Question 29

Ice cream consumption and crime both go up in the summer. That means…(check all that apply):

Accepted Answer

The two are correlated but that doesn’t mean one causes another, A third thing (such as heat, & kids being out of school) could cause both

Question 30

"A stopped clock is right twice a day." The time the clock shows is

Accepted Answer

Reliable but not valid

Question 31

According to the Central Limit Theorem: As the sample size increases, the mean average becomes MORE...

Accepted Answer

Normally distributed

Question 32

This Quiz has some Midterm review topics but is not meant to be representative of the actual exam items etc.

Accepted Answer

Ok I get it

Question 33

Which of these can lead to misleading data?

Accepted Answer

All of these!

Question 34

Which of these may contribute to error in measurement?

Accepted Answer

I'll go for "All ofthe Above"

Question 35

Reliability can be calculated as…

Accepted Answer

The proportion of true score variance over total variance

Question 36

A cross-sectional study finds that high testosterone levels are related to conduct disorder.

Accepted Answer

Any of the above might be true

Question 37

A parameter is a statistic that describes the

Accepted Answer

Population

Question 38

What's the probability of selecting the Queen of Diamonds from a deck of cards?

Accepted Answer

0.019

Question 39

Case-control studies are best suited for…

Accepted Answer

Identifying risk factor for disease

Question 40

A naturalistic experiment is a type of study that is as strong as a randomized control study

Accepted Answer

False

Question 41

Which of these are true about the normal curve?

Accepted Answer

Tails meet the x-axis at infinity

Midterm Exam Review Quiz

Questions 41

Midterm Exam Review Quiz

Questions 41