Questions Below Are Based on the Following: (This Is Similar

question 94

Short Answer

Questions below are based on the following: (This is similar to an item in the text at the back of chapter 12 but WITH A DIFFERENT DATA SET). A researcher is interested in whether a certain amphetamine drug will affect the retention of learned behavior among rats as a function of how much time is allowed to elapse between the training and the retention test. Four groups, ten subjects in each group, were randomly selected from a colony of Sprague-Dawley rats. All the rats were given the same amount of training on a simple maze. Groups A and C were given the amphetamine, whereas Groups B and D were given a placebo. Groups A and B were tested for retention immediately following the training, whereas Groups C and D were tested 4 hours later. The retention measure consisted of a scaled score based on how many correct responses the rats would exhibit while running the maze, the higher the score the higher the retention $$\begin{array}{l}\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\text { FACTOR A }\\\begin{array} { l c c } & \begin{array} { c c } \text { Amphetamine } \\\text { Group A }\end{array} & \begin{array} { c } \text { Placebo } \\\text { Group B }\end{array} \\& 15 & 13 \\& 9 & 9 \\& 9 & 12 \\\text { Immediate } & 11 & 7 \\\text { Test } & 10 & 7 \\& 6 & 8 \\& 10 & 10 \\& 12 & 9 \\& 14 & 5 \\& 7 & 11 \\& \text { FACTOR B } & \\& \text { Group C } & \text { Group D } \\& 1 & 8 \\& 5 & 6 \\\text { Delayed } & 2 & 9 \\\text { Test } & 4 & 4 \\& 5 & 4 \\& 6 & 5 \\& 5 & 6 \\& 2 & 6 \\& 6 & 6 \\& 1 & 7\end{array}\end{array}$$
-Calculate the F ratio for the interaction

---

Definitions:

Priming

A technique in psychology used to train an individual's memory in both perceptual and conceptual forms.

Serial Position Effect

A cognitive phenomenon where items at the beginning and end of a list are more likely to be remembered than those in the middle.

Effortful Processing

The active process of trying to remember, learn, or understand something, which requires attention and deliberate effort.

Effective Encoding

The process of converting information into a form that allows it to be stored in our memory.