PROBLEM A DEVELOPMENTAL PSYCHOLOGIST IS INTERESTED IN THE IMPACT OF EXPOSURE TO TV WATCHING BEFORE 3 (EXPOSURE VS. NO EXPOSURE) AND THE NUMBER OF BOOKS IN CHILDREN'S HOME (HIGH VS. LOW) ON CHILDREN'S HYPERACTIVITY SCORES (HIGHER SCORE = MORE HYPERACTIVITY). ANOVA TABLE, AND EFFECT SIZES ARE REPORTED BELOW.
MEAN HYPERACTIVITY SCORES (HIGHER SCORE = MORE HYPERACTIVITY)
TV EXPOSURE
NO TV EXPOSURE
HIGH BOOKS
5
3
LOW BOOKS
17
15
ANOVA TABLE
SOURCE
SS
DF
MS
F
BETWEEN
TV WATCHING
4.52
1
4.52
1.12
NUMBER OF BOOKS
23.79
1
23.79
5.87*
INTERACTION
3.12
1
3.12
0.77
WITHIN
85.12
20
4.05
TOTAL
116.55
23
*p<.05
ETA-SQUARED: TV WATCHING = 0.03, NUMBER OF BOOKS = 0.31, INTERACTION = 0.01
1. WAS THERE A SIGNIFICANT MAIN EFFECT OF TV WATCHING? (YES/NO)
2. WAS THERE A SIGNIFICANT MAIN EFFECT OF NUMBER OF BOOKS? (YES/NO)
3. WAS THERE A SIGNIFICANT INTERACTION? (YES/NO)
FOR THE FOLLOWING STATEMENTS, WRITE TRUE OR FALSE. EVALUATE WHETHER THEY ARE STATISTICALLY TRUE OR FALSE (WRITE TRUE OR FALSE IN THE BOX).
4. OVERALL TV EXPOSURE LED TO HIGHER LEVELS OF HYPERACTIVITY THAN NO TV EXPOSURE.
5. THE IMPACT OF TV WATCHING DEPENDED ON NUMBER OF BOOKS.
6. OVERALL CHILDREN WITH A HIGH NUMBER OF BOOKS AND CHILDREN WITH A LOW NUMBER OF BOOKS HAD SIMILAR HYPERACTIVITY SCORES.
7. CHILDREN WITH A HIGH AMOUNT OF BOOKS HAD HIGHER HYPERACTIVITY SCORES IF THEY WERE IN THE TV EXPOSURE GROUP THAN CHILDREN WITH A HIGH AMOUNT OF BOOKS IN THE NO TV EXPOSURE GROUP.
8. OVERALL CHILDREN WITH A HIGHER AMOUNT OF BOOKS HAD LOWER HYPERACTIVITY SCORES THAN CHILDREN WITH A LOWER AMOUNT OF BOOKS.
9. TV EXPOSURE AND NO TV EXPOSURE RESULTED IN SIMILAR LEVELS OF HYPERACTIVITY.
10. WHICH OF THE FOLLOWING HAD THE GREATEST IMPACT ON VARIANCE IN CHILDREN'S HYPERACTIVITY (WRITE A, B OR C)? WRITE YOUR ANSWER:
A. TV WATCHING
B. NUMBER OF BOOKS
C. INTERACTION