Assessing Cognitive Estimation and Its Effects on Community Integration in People with Acquired Brain Injury Undergoing Rehabilitation

Table 2

Item analysis and component analysis of the BCET.

Item	% correct	% incorrect	1	2	3	4
(10) How many crisps are there in a small one-ounce bag?	72.6	27.4	.671
(11) How long would it take an adult to handwrite a one-page letter?	62.2	37.8	.649
(15) How long does it take to iron a shirt?	80.1	19.9	.618
(12) What is the age of the oldest living person in the USA?	65.2	34.8	.546
(6) How long does it take a builder to build an average sized house?	72.1	27.9	.518
(17) How many slices of bread are there in a one-pound loaf?	70.1	29.9	.417
(20) How long does it take for fresh milk to go sour in the refrigerator?	59.2	40.8	.411
(2) How much does a (house) telephone weigh?	74.6	25.4		.734
(14) How much does a folding chair weigh?	73.1	26.9		.696
(18) How much does a pair of men’s shoes weigh?	56.2	43.8		.692
(13) How long is a tablespoon?	75.6	24.4	.416	.462
(5) How high off a trampoline can a person jump?	79.1	20.9	.376	.417	.337
(16) How long is a giraffe’s neck?	75.1	24.9		.400	.378
(19) How much does the heaviest man in the United States weigh?	66.7	33.3			.713
(4) What is the distance an adult can walk in an afternoon?	69.7	30.3			.656
(7) How much do a dozen, medium-sized apples weigh?	57.7	42.3			.513
(3) How many sticks of spaghetti are there in a one-pound package?	63.2	36.8				.702
(9) How many brushings can someone get from a large tube of toothpaste?	53.7	46.3				.696
(1) How many seeds are there in a watermelon?	51.2	48.8				.500
(8) How far could a horse pull a farm cart in one hour?	73.6	26.4				.401