1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ad-work [718]
3 years ago
5

A researcher recruited 55 adults and tested their ability to remember a list of words. For each participant, the researcher coun

ted the number of words correctly recalled and recorded their age (in years).
HYPOTHESIS
The research hypothesis is that age is related to memory performance.
This hypothesis is:__________.
a. directional
b. non-directional
Mathematics
1 answer:
mr Goodwill [35]3 years ago
6 0

Answer:

b. non-directional

Step-by-step explanation:

A directional hypothesis can be described as a hypothesis which predicts the direction of impact, either positive or negative, of one variable, especially independent variable, on the other variable which is known as an independent variable. For example, the hypothesis "age <u>reduces</u> memory performance" is a directional hypothesis. The reason is that "reduces" show the direction that age has a negative effect on memory performance.

On the other hand, non-directional hypothesis can be described as a hypothesis that does not predict the direction of impact but only states the relationship between two variables. For example, the research hypothesis is in the question that "age is <u>related</u> to memory performance" is non-directional hypothesis. This because the word "related" in the hypothesis only indicate that there is a relationship between the two variables, not the direction of effect of one variable on the other.

You might be interested in
Please help and show work thank you.
vichka [17]
An equilateral triangles has 3 equal sides and 3 equal angles.
All the angles of an equilateral triangle have a measure of 60 degrees.

Using the Pythagorean theorem, the length of the hypotenuse squared is the length of one leg squared plus the length of another leg squared.

Here's the equation for the Pythagorean theorem.
Let c be the length of the hypotenuse.
Let a and b be the length of the two legs.
a^2 + b^2 = c^2 

Have an awesome day! :)
7 0
3 years ago
Read 2 more answers
Which of the following statements about UK and UL is true?
dedylja [7]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
Is 6:9 reater than less than or equal to 9:12
insens350 [35]

Answer:

less than

Step-by-step explanation:

6/9 is less than 9/12

6/9=.6666666666666666666666666

9/12=.75


.666666<.75

5 0
3 years ago
In a jar of 250 jelly beans, a random sample of 25 is pulled. In the random sample, 15 of the jelly beans are red. How many jell
vovangra [49]
150 jelly beans are most likely to be red
You can multiply both numbers by ten
6 0
1 year ago
Read 2 more answers
Sofia made a scale drawing of a house. The scale she used was 1 millimeter : 6 meters. If the actual length of the garage is 12
romanna [79]

Answer:

2 millimeters.

Step-by-step explanation:

1 millimeter : 6 meters

x millimeters : 12 meters

x = (12÷6) × 1

x = 2×1

x = 2 millimeters

6 0
3 years ago
Other questions:
  • PLEASE HELP QUICKLY AS POSSIBLE THANK YOU VERY MUCH :) ​
    8·2 answers
  • True or False: You can draw a quadrilateral with no parallel lines and at least one right angle.
    9·1 answer
  • Which of the following statements is not true?
    9·1 answer
  • Which expression does not belong with the other three? explain your reasoning. 10/-5 -10/5 -10/-5 or -(10/5)?
    11·1 answer
  • At an appliance store the price of the refrigerator is marked up 25% to $406.25 what is the price of the refrigerator before the
    9·2 answers
  • CAN SOMEONE PLEASE HELP ME THIS IS DUE TODAY AND IT CONTS A LOT ON MY GRADE
    12·2 answers
  • What is the value of x
    14·1 answer
  • Pohgxeicucorcbuebcoeubceubcougcurevci2cvirvcucbkbc3rvrvr3vvvrvrvvvvv
    12·2 answers
  • The odometer in Mr. Washington's car does not work correctly. The odometer recorded 13.2 miles for
    9·2 answers
  • A cast iron pipe used as a water main for a home has an outer diameter of 8 in. If the pipe has a thickness of 0.25 in, what vol
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!