Experimental Design 8

Question 0

Learning effect (practice effect)

Answer 0

Performance on the second task might improve merely because of the practice gained on the first task

Question 1

Selection differences

Answer 1

The people selected to be in the conditions cannot differ in any systematic way

Question 2

Attribution (mortality)

Answer 2

The dropout factor most participants will drop out go long term experiments

Question 3

Internal validity

Answer 3

Results of an experiment can confidently be attributed to the effect of the IV. To achieve internal validity there researcher must design and conduct the experiment so the IV can cause the result

Question 4

Confounding variable

Answer 4

Variable that varies along with the IV uncontrolled

Question 5

Random assignment

Answer 5

In independent groups design, the participants undergo random assignment. This means that the decision to assign an individual to a particular condition is completely random and beyond the control of the researcher

Question 6

Latin square

Answer 6

A limited set of orders constructed to ensure each appear ordinal position and each condition precedes and follows each condition one time. This technique controls order effects without having all possible orders

Question 7

Order effect

Answer 7

The order of presenting the treatments affects the DV

Question 8

Matched pair designs

Answer 8

Instead of simply randomly assigning participants to groups, the goal is to first match people on participant variable. A more complicated method of assigning participants to conditions in an experiment

Question 9

Fatigue effect

Answer 9

Result in deterioration in performance from the first to the second condition as the research participant becomes tired, bored, or distracted

Question 10

Carryover effect

Answer 10

It is also possible for the effect of the first treatment to carry over to influence the response to the second treatment

Question 11

Counterbalancing

Answer 11

In repeated measures design it is very important to counterbalance the order of the conditions

Question 12

Repeated measures design (within-subjects design)

Answer 12

Experiment with 2 conditions each participant is assigned to both levels of the IV. Comparisons are made within the same group of participants

Question 13

Independent group design (between-subjects design

Answer 13

Participants are randomly assigned to various conditions so that each participants in only one group. Comparisons are made between different groups of participants.

Question 14

Post test only design

Answer 14

Researcher using post test only design must obtain two equivalent groups of participants, introduce the IV and measure the effect Of the
IV on the DVD

Question 15

An experiment I which the same subjects are assigned to each groups is

Answer 15

Within subject design

Question 16

An experiment in which different subjects are assigned to each group is a

Answer 16

Between subject design

Question 17

The dropout factor I experiments

Answer 17

Attribution

Question 18

Whe the results of an experiment can be attributed to the effect of the manipulation of the IV and not some other confounding variables the experiment has

Answer 18

Internal validity

Question 19

An order effect in which participants get better the longer they do the task is

Answer 19

Learning effect

Question 20

If participants elect which group they are assigned to in an experiment the differences in the type of subjects who make up each group would be called

Answer 20

Selection differences

Question 21

A technique to control for order effects without having all possible orders

Answer 21

Latin square

Question 22

An order effect in which participants get tired the longer they do the task

Answer 22

Fatigue effect