. A researcher uses a within-subjects design in which one group completes a difficult puzzle and the second group completes an easy puzzle. He finds that participants who completed the difficult puzzle first were able to learn about the puzzle and completed the easy puzzle quicker, compared to participants who did the easy puzzle first. What type of threat to internal validity was described in this example?
A. sampling effects
B. carryover effects
C. participant attrition
D. participant fatigue
Ans: B
You might also like to view...
Play for children with special needs should be individualized to reflect the child's assets. _________________________
Indicate whether the statement is true or false
Sharon's teacher, Mr. Armus, has developed a special software program for her and other students to use in his calculus class. Students can select specific topics to focus on for more practice and, after attempting to solve several problems related to the topic, correct answers are given, along with explanations of why other answers are incorrect. The program also suggests, based on student
responses, additional problems to try and solve. Mr. Armus has developed and is using: a. an intelligent tutoring system. b. project-based learning. c. process-based learning. d. knowledge transforming system.
Educators are very aware of the language differences of students with CLD and do not often refer these students to special education
Indicate whether the statement is true or false.
When families are highly cohesive, boundaries among their subsystem are considered to be:
a. Blurred or weak b. Clearly defined c. Non-existent d. Unbending