28th International Congress of Psychology August 8 ... - U-netSURF

China
The research investigated 800 middle school students from the Grade one of junior high school to
Grade three of senior high school with questionnaire on learning ways of middle school students
made by our own. The result shows: 1.The Grasping on cognitive strategy of junior high school
students is under control of others, and the using of strategies is not steady. But the students of
senior high school is at the level of self-control; 2.There is significant difference in cognitive
strategy of male and female; 3.There is significant relationship between learning score and
cognitive strategy.
2072.5 Methodological challenges in estimating the prevalence of HIV infection in Africa: The
case of South Africa, Leickness Chisamu Simbayi, Olive Shisana, Human Sciences Research
Council, Cape Town, South Africa
Recently UNAIDS revised downwards the total number of people living with HIV/AIDS found
globally and especially in Sub-Saharan Africa. Indeed, some African countries including South
Africa and Kenya have recently conducted household-based population surveys which have
revealed significantly lower estimates of the prevalence of HIV infection compared to those
computed by UNAIDS based on antenatal clinic (ANC) surveillance surveys conducted among
pregnant women only. The similarities and differences between the two methods are presented and
illustrated with data from South Africa. It is concluded that household-based population surveys
provide more reliable estimates on HIV prevalence than ANC surveillance data.
2072.6 Multiple aptitude test battery for non-technical skills: A developmental study, Soumi
Awasthy, Ministry of Defence, Govt of India, India
Paper attempts to develop a multiple aptitude test battery for non-technical jobs of the defence
forces. Battery of six psychological tests to measure skills pertaining to (a) alertness (b) visual
perception, (c) intelligence, (d) number skills, (e) reaction and judgement and (f) language were
developed based on psychometric principles. Reliability of the tests ranged from .71 to .91 and
validity coefficients ranged from .29 to .58 (p>.01). Multiple correlations were computed to find
the most efficient team of tests which could predict success in training of the non-technical skills.
Norms along with minimum selection grades have been provided.
2072.7 Design and analysis in a cognitive assessment, Dunali Yan 1 , Robert Mislevy 2 , Russell
Almond 1 , 1 Educational Testing Service, Princeton, New Jersey, USA; 2 University of Maryland,
College Park, Maryland, USA
There is growing interest in educational assessments that coordinate substantive considerations,
learning psychology, task design, and measurement models. This paper concerns an analysis of
mixed-number subtraction assessment created in light of cognitive analyses of students’ problem
solutions. In particular, we fit a binary skills multivariate latent class model to the data, and
compare results to those obtained with an IRT model and a modified latent class model suggested
by model criticism indices. MCMC techniques are used to estimate the parameters in the model, in
a Bayesian framework that integrates information from substantive theory, expert judgment, and
empirical data.
2072.8 Alexander curriculum-based index of towner gardens school, and, Alexander
435