Design of a Study

What are the CONSTANTS in this experiment?

An experiment was conducted to determine whether kids can do more push-ups than adults. To test this, the researcher recruited 5 adults and 5 kids, each willing to do as many push-ups as possible in one minute. Each participant started in a plank position and was given a countdown before beginning. The researcher then timed each participant for one minute and counted how many full push-ups they completed. Finally, the average number of push-ups for adults and kids was calculated and compared.

• The adults

• The kids

• Amount of time tested

• Number of push-ups

• Starting in plank pose

Which is the DEPENDENT VARIABLE in this experiment?

An experiment was conducted to determine whether kids can do more push-ups than adults. To test this, the researcher recruited 5 adults and 5 kids, each willing to do as many push-ups as possible in one minute. Each participant started in a plank position and was given a countdown before beginning. The researcher then timed each participant for one minute and counted how many full push-ups they completed. Finally, the average number of push-ups for adults and kids was calculated and compared.

• Number of people tested

• Amount of push-ups completed

• Amount of time tested

• The kids

Tags

CCSS.6.EE.C.9

Which is the EXPERIMENTAL GROUP for this experiment?

An experiment was conducted to determine whether kids can do more push-ups than adults. To test this, the researcher recruited 5 adults and 5 kids, each willing to do as many push-ups as possible in one minute. Each participant started in a plank position and was given a countdown before beginning. The researcher then timed each participant for one minute and counted how many full push-ups they completed. Finally, the average number of push-ups for adults and kids was calculated and compared.

• Amount of push-ups completed

• Amount of time tested

• The starting plank pose

• The kids

Tags

CCSS.7.SP.B.4

Which is the INDEPENDENT VARIABLE in this experiment?

An experiment was conducted to determine whether kids can do more push-ups than adults. To test this, the researcher recruited 5 adults and 5 kids, each willing to do as many push-ups as possible in one minute. Each participant started in a plank position and was given a countdown before beginning. The researcher then timed each participant for one minute and counted how many full push-ups they completed. Finally, the average number of push-ups for adults and kids was calculated and compared.

• The timer

• The average number of push-ups

• One minute

• The age of the participants

Tags

CCSS.6.EE.C.9

Which is the CONTROL GROUP for this experiment?

An experiment was conducted to determine whether kids can do more push-ups than adults. To test this, the researcher recruited 5 adults and 5 kids, each willing to do as many push-ups as possible in one minute. Each participant started in a plank position and was given a countdown before beginning. The researcher then timed each participant for one minute and counted how many full push-ups they completed. Finally, the average number of push-ups for adults and kids was calculated and compared.

• The adults

• Amount of time tested

• Amount of push-ups completed

• One minute

Tags

CCSS.HSS.IC.B.5

What is the EXPERIMENTAL GROUP in this experiment?

Place two plants of similar height in a window with lots of light. Water one plant with water every day and measure it’s height in inches. Water the other plant with gatorade and measure its height in inches. Compare the heights of each plant.

• Plants watered with Gatorade

• Plants watered with water

• Height of plants in inches

• Type of plant

What is the CONTROL GROUP in this experiment? Place two plants of similar height in a window with lots of light. Water one plant with water every day and measure it’s height in inches. Water the other plant with gatorade and measure its height in inches. Compare the heights of each plant.

• Height of plants in inches

• A well lit window

• Plants watered with Gatorade

• Plants watered with water

Tags

CCSS.HSS.IC.B.5

What are the CONSTANTS in this experiment? Place two plants of similar height in a window with lots of light. Water one plant with water every day and measure it’s height in inches. Water the other plant with gatorade and measure its height in inches. Compare the heights of each plant.

• Watering the plants every day

• The type of ruler used to measure

• Where the plants are located

• Measuring the heights of plants in inches

Tags

CCSS.3.MD.B.4

What is the DEPENDENT VARIABLE in this experiment? Place two plants of similar height in a window with lots of light. Water one plant with water every day and measure it’s height in inches. Water the other plant with gatorade and measure its height in inches. Compare the heights of each plant.

• The water

• The gatorade

• The plants

• The height

Tags

CCSS.6.EE.C.9

Which of the following could be classified as a census?

• a survey of a percentage of each state’s population about voting choices

• a survey of each student in a school about school lunch options

• a survey of all the children in a supermarket to determine the favorite cereal brands of the general population

• a survey of all the women on Main Street to determine the current movie preferences of all people over age 20

Tags

CCSS.7.SP.A.1