A researcher was interested in comparing the effectiveness of 3 types of instructional materials for teaching 1 biology concept. The instructional materials included: using text materials, video materials, text + video materials.  25 10th grade Biology students were randomly assigned to each type of instructional material for a total of 75 students.  These 75 students were volunteers  recruited from an after-school program.  Students used the method for 1, 2-hour session and were then tested using a 20 item Biology exam. What is the dependent variable(s)?

A researcher was interested in comparing the effectiveness of 3 types of instructional materials for teaching 1 biology concept. The instructional materials included: using text materials, video materials, text + video materials.  25 10th grade Biology students were randomly assigned to each type of instructional material for a total of 75 students.  These 75 students were volunteers  recruited from an after-school program.  Students used the method for 1, 2-hour session and were then tested using a 20 item Biology exam. The researcher used random assignment. List 1 other method the researcher could use to control and reduce extraneous and confounding variables?

What is the dependent variable? The prediction of depression in adulthood from the number of traumatic events experienced by first-generation college students. in childhood.  

If a researcher reported an effect size (Cohen’s d)  comparing the difference between males and females on mathematics of -1.50, what would be your interpretation of the size of the effect?

The Columbian Exchange only had a significant impact on conditions in the New World (North America, Middle America, and South America).  Locations in Europe were not significantly impacted by the exchange of agricultural goods.

Which of the following was NOT a type of manufacturing that existed BEFORE the Industrial Revolution?

In which of the following places would you be least likely to encounter subsistence farming?

A box contains 79 coins, only dimes and quarters.  The amount of money in the box is $12.70.   How many quarters and dimes are in the box? TYPE YOUR WORK IN THE BOX BELOW.     NO WORK = NO POINTS                   NO CREDIT FOR GUESS & CHECK a.  Clearly assign an algebraic expression to each coin (use only ) b.  Write an algebraic equation modeling the problem  NO EQUATION = NO POINTS      c.  Solve d.  Clearly write out your answer(s).

Solve.  Show all steps and use a horizontal format for add and subtract as shown in the class video lesson.  Use the    button as needed to insert/type math equations, symbols, etc. You will need this to show any divisions (fractions) when solving equations. TYPE YOUR WORK IN THE BOX BELOW.     NO WORK = NO POINTS                   In order to show work, use the Math Editor in Canvas ( Insert, then the   button) to insert/type math equations, symbols, etc. Hit enter between each step of the solving process so that your work is “vertically stacked” Use the fraction template   in the Math Editor to show division (as needed).  Don’t use the

Write an algebraic expression for: Simplify completely.    TYPE YOUR WORK IN THE BOX BELOW.     NO WORK = NO POINTS