Module 2

Question 1

Response Bias

Answer 1

Question ‘is not’ persuasive (convincing). you can’t answer truthful; unintentional.

Example: Participant answers questions in a way they think the researcher wants.

Question 2

Conscious Bias

Answer 2

Question ‘is’ persuasive (convincing).

Question 3

Lack of Blinding

Answer 3

When participants or researchers know the treatment, leading to biased results.

Question 4

Scatter Diagrams

Answer 4

Helps us find relationships or correlations between 2 variables (independent & dependent).

Question 5

Correlation

Answer 5

Shows how two variables change together.

Question 6

Probability

Answer 6

Measures how likely something is to happen.

Complement = 1 (Probability of the event)

Question 7

Bayes Theorem

Answer 7

It helps adjust your predictions when new data arrives.
Keyword: Given that

Question 8

Mean

Answer 8

Average; calculated by adding all the values and dividing by the total number of values.

Question 9

Mode

Answer 9

Most often; KEYWORD: Typical

Question 10

Median

Answer 10

Middle Value; If there is an even number of values, it’s the average of the two middle numbers.

Question 11

Variance

Answer 11

is the average of the squared differences from the mean.

If the answer is Negative then you square it. Then do the average.

Question 12

Standard Deviation

Answer 12

Is the spread of data set.

Question 13

Z-Score

Answer 13

shows how far a number is from the average. Positive means above, negative means below.

Question 14

Correlation is between

Answer 14

0 - 1

Question 15

Strong Relationships =

Answer 15

1; has a number.

Question 16

Weak Relationship =

Answer 16

0; is not given a number.

Question 17

Correlation is NOT

Answer 17

a causation.

Question 18

Keywords for Multiple Principle

Answer 18

AND, ALL, BOTH, EVERY, IN A ROW

Question 19

Multiple Principle Calculates

Answer 19

Intercept

Question 20

Multiple Principle Calculates

Answer 20

Intercept

Question 21

Keywords for Addition Principle:

Answer 21

OR, EITHER, OTHER

Question 22

Addition Principle calculates

Answer 22

Union

Question 23

Standard Deviation is the square root of..

Answer 23

Variance

Question 24

Known Probabilities
68.2% =

Answer 24

+/- 1

Question 25

Known Probabilities
95.4%

Answer 25

+/- 2

Question 26

Known Probabilities
99.7%

Answer 26

+/- 3

Question 27

To calculate the Z-Score:

Answer 27

(Me - Mean score. Then divide by Standard Deviation.