Question

A psychologist was interested in the effects of meaningfulness and amount of material on memory. Participants...

A psychologist was interested in the effects of meaningfulness and amount of material on memory. Participants took part in an experiment in which they learned lists of meaningful or meaningless words. The independent variables were (a) list length (short or long) and (b) type of material (meaningful or meaningless). The dependent variable was the percentage of words recalled after one week. These are the findings:

GRAPH:

Short List

Long List

Meaningful

60

5

32.5

Meaningless

35

5

20

47.5

5

Main effect for List Length:

Main effect for Type of Material:

Interaction:

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A cognitive psychologist believes that a particular drug improves short-term memory. The drug is safe, with...
A cognitive psychologist believes that a particular drug improves short-term memory. The drug is safe, with no side effects. An experiment is conducted in which 8 randomly selected subjects are given the drug and then given a short time to memorize a list of 10 words. The subjects are then tested for retention 15 minutes after the memorization period. The number of words correctly recalled by each subject is as follows: 9, 10, 12, 7, 10, 8, 7, 9. Over...
In a long-term study about coffee consumption, age, and memory, a researcher gathered N=10 participants. The...
In a long-term study about coffee consumption, age, and memory, a researcher gathered N=10 participants. The researcher gave the participants a list of words to remember, and asked them how many of these words can be recalled 2 hours later. On day 1, participants were told to come in, but refrain from drinking any caffeinated drinks at least 24h prior to the testing session. On day 2, participants were told to come in, and consumed one cup of coffee prior...
In an effort to promote a new product, a marketing firm asks participants to rate the...
In an effort to promote a new product, a marketing firm asks participants to rate the effectiveness of ads that varied by length (short, long) and by type of technology (static, dynamic, interactive). Higher ratings indicated greater effectiveness. Source of Variation SS df MS F Length 5 Technology Length × Technology 150 Error 570 114 Total 855 (a) Complete the F-table and make a decision to retain or reject the null hypothesis for each hypothesis test. (Assume experimentwise alpha equal...
2. Which of the following is NOT a form of long-term memory? A. semantic memory B....
2. Which of the following is NOT a form of long-term memory? A. semantic memory B. procedural memory C. iconic memory D. episodic memory E. these are all forms of long-term memory 3. When conducting an experiment that asks participants to memorize a list of 20 words, which experimental manipulation would serve to abolish the recency effect? A.speed up the presentation rate B.slow down the presentation rate C.add a distractor task at the beginning of the experiment D.add a distractor...
In an effort to promote a new product, a marketing firm asks participants to rate the...
In an effort to promote a new product, a marketing firm asks participants to rate the effectiveness of ads that varied by length (short, long) and by type of technology (static, dynamic, interactive). Higher ratings indicated greater effectiveness. Source of Variation SS df MS F Length 10          Technology             Length × Technology 156          Error 570 114       Total 826          (a) Complete the F-table and make a decision...
In an effort to promote a new product, a marketing firm asks participants to rate the...
In an effort to promote a new product, a marketing firm asks participants to rate the effectiveness of ads that varied by length (short, long) and by type of technology (static, dynamic, interactive). Higher ratings indicated greater effectiveness. Source of Variation SS df MS F Length 15 Technology Length × Technology 142 Error 570 114 Total 807 (a) Complete the F-table and make a decision to retain or reject the null hypothesis for each hypothesis test. (Assume experimentwise alpha equal...
Suppose a cognitive psychologist conducts a study on the effects of long-term substance use on short-term...
Suppose a cognitive psychologist conducts a study on the effects of long-term substance use on short-term memory. The researcher recruits a total of 30 participants, where 10 participants are identified as marijuana users, 10 participants are alcohol users, and 10 participants identify as using no substances. Participants in each group were given a list of 20 nouns to memorize for 15 minutes. Participants were then given a 15- minute break and then asked to write down/recall as many of the...
In an effort to promote a new product, a marketing firm asks participants to rate the...
In an effort to promote a new product, a marketing firm asks participants to rate the effectiveness of ads that varied by length (short, long) and by type of technology (static, dynamic, interactive). Higher ratings indicated greater effectiveness. Source of Variation SS df MS F Length 10 Technology Length × Technology 142 Error 570 114 Total 802 (a) Complete the F-table and make a decision to retain or reject the null hypothesis for each hypothesis test. (Assume experimentwise alpha equal...
In an effort to promote a new product, a marketing firm asks participants to rate the...
In an effort to promote a new product, a marketing firm asks participants to rate the effectiveness of ads that varied by length (short, long) and by type of technology (static, dynamic, interactive). Higher ratings indicated greater effectiveness. Source of Variation SS df MS F Length 15          Technology             Length × Technology 152          Error 570 114       Total 827          (a) Complete the F-table and make a decision...
A school psychologist is interested in whether time has changed the problem with student parking that has been discussed for a few years.
A school psychologist is interested in whether time has changed the problem with student parking that has been discussed for a few years. As the student population has grown the psychologist fully suspects that the time to find parking has become worse rather than better for the student body. Over the past decade the average amount of time to find parking for students is 15 minutes (µ=15). The current sample’s information is as follows: M=19 minutes and a S= 6...