Answer:
The answer is D: protecting the United States
Explanation:
:)
Answer:
Ceiling effect
Explanation:
Full question
Hannah wants to see if her new technique of ping-pong playing can increase one's ping-pong performance. She asks the U.S. Olympic ping-pong team to work with her. Half of the U.S Olympic team is randomly assigned to be taught by the new style, the experimental group, and the other randomly assigned half are not, the control group. Her technique does not significantly increase the performance of the experimental group compared to the control group, perhaps because they are already so good at the sport. This could be an example of
a. the need for matching groups.
b. a ceiling effect.
c. the need for determining initial comparability.
d. an internally invalid study.* .
Ceiling effect
In Hannah case the experimental group and the control group was pretty much not significantly different because both groups were already good at the sport. Her experiment couldnt function properly because there is no accuracy to the test since both groups perform well, this is known as a ceiling effect
The term ceiling effect is a measurement limitation that occurs when the highest possible score or close to the highest score on a test or measurement instrument is reached, thereby decreasing the likelihood that the testing instrument has accurately measured the intended group.
Answer:
she swam 2 laps while doing the back stroke
Answer:A flashbulb memory
Explanation:
A flashbulb memory is a very detailed information in which we remember all the details very well and clearly usually because it is associated with situation that aroused intense emotions from us such as a sad or a surprising situation or exciting news. They record vital times or events that have occured in our lives.
They are part of our long term memory and they are of particular exceptional events in our lives and we are able to remember all the details associated with this memory like where it happened.
Getting married is one of the crucial days in one's life and it aroused intense emotions of excitement which makes its likely that it will be stored as a flashbulb memory in which we will rememver every detailed information of that day forever and chances are we will talk about this day time after time which make them stick in our memories forever.
